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12137760855 = 3251124520729
BaseRepresentation
bin10110100110111011…
…11000100001010111
31011022220100010201100
423103131320201113
5144324231321410
65324230201143
7606533156613
oct132335704127
934286303640
1012137760855
1151694a4420
122428ab31b3
1311b586991c
1483203c343
154b08d38c0
hex2d3778857

12137760855 has 24 divisors (see below), whose sum is σ = 22951403280. Its totient is φ = 5884974720.

The previous prime is 12137760851. The next prime is 12137760871. The reversal of 12137760855 is 55806773121.

It is a happy number.

12137760855 is a `hidden beast` number, since 1 + 2 + 1 + 37 + 7 + 608 + 5 + 5 = 666.

It is not a de Polignac number, because 12137760855 - 22 = 12137760851 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a self number, because there is not a number n which added to its sum of digits gives 12137760855.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12137760851) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 12259870 + ... + 12260859.

It is an arithmetic number, because the mean of its divisors is an integer number (956308470).

Almost surely, 212137760855 is an apocalyptic number.

12137760855 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

12137760855 is a deficient number, since it is larger than the sum of its proper divisors (10813642425).

12137760855 is a wasteful number, since it uses less digits than its factorization.

12137760855 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24520751 (or 24520748 counting only the distinct ones).

The product of its (nonzero) digits is 352800, while the sum is 45.

The spelling of 12137760855 in words is "twelve billion, one hundred thirty-seven million, seven hundred sixty thousand, eight hundred fifty-five".

Divisors: 1 3 5 9 11 15 33 45 55 99 165 495 24520729 73562187 122603645 220686561 269728019 367810935 809184057 1103432805 1348640095 2427552171 4045920285 12137760855