13165650612 has 36 divisors (see below), whose sum is σ = 35237478276. Its totient is φ = 4130400000.

The previous prime is 13165650607. The next prime is 13165650613. The reversal of 13165650612 is 21605656131.

13165650612 is a `hidden beast` number, since 1 + 31 + 6 + 5 + 6 + 5 + 0 + 612 = 666.

13165650612 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 7913169936 + 5252480676 = 88956^2 + 72474^2 .

It is a tau number, because it is divible by the number of its divisors (36).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13165650613) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 10755639 + ... + 10756862.

It is an arithmetic number, because the mean of its divisors is an integer number (978818841).

Almost surely, 2^13165650612 is an apocalyptic number.

13165650612 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

13165650612 is an abundant number, since it is smaller than the sum of its proper divisors (22071827664).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

13165650612 is a wasteful number, since it uses less digits than its factorization.

13165650612 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21512528 (or 21512523 counting only the distinct ones).

The product of its (nonzero) digits is 32400, while the sum is 36.

The spelling of 13165650612 in words is "thirteen billion, one hundred sixty-five million, six hundred fifty thousand, six hundred twelve".