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668032467711 = 37347127771789
BaseRepresentation
bin10011011100010011101…
…01101000001011111111
32100212022022221111110120
421232021311220023333
541421112302431321
61230520114110023
766156316166640
oct11561165501377
92325268844416
10668032467711
11238346a04524
12a957687b313
134acc2587a6b
14244938536c7
151259c880ec6
hex9b89d682ff

668032467711 has 32 divisors (see below), whose sum is σ = 1021701496320. Its totient is φ = 380329378176.

The previous prime is 668032467649. The next prime is 668032467731. The reversal of 668032467711 is 117764230866.

It is a happy number.

It is not a de Polignac number, because 668032467711 - 29 = 668032467199 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (668032467731) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 9269605 + ... + 9341393.

It is an arithmetic number, because the mean of its divisors is an integer number (31928171760).

Almost surely, 2668032467711 is an apocalyptic number.

668032467711 is a deficient number, since it is larger than the sum of its proper divisors (353669028609).

668032467711 is a wasteful number, since it uses less digits than its factorization.

668032467711 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 73423.

The product of its (nonzero) digits is 2032128, while the sum is 51.

The spelling of 668032467711 in words is "six hundred sixty-eight billion, thirty-two million, four hundred sixty-seven thousand, seven hundred eleven".

Divisors: 1 3 7 21 347 1041 1277 2429 3831 7287 8939 26817 71789 215367 443119 502523 1329357 1507569 3101833 9305499 24910783 74732349 91674553 174375481 275023659 523126443 641721871 1925165613 31811069891 95433209673 222677489237 668032467711