11757665216 has 28 divisors (see below), whose sum is σ = 25452674520. Its totient is φ = 5344392960.

The previous prime is 11757665197. The next prime is 11757665219. The reversal of 11757665216 is 61256675711.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11757665219) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8349911 + ... + 8351318.

It is an arithmetic number, because the mean of its divisors is an integer number (909024090).

Almost surely, 2^11757665216 is an apocalyptic number.

11757665216 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

11757665216 is an abundant number, since it is smaller than the sum of its proper divisors (13695009304).

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

11757665216 is a wasteful number, since it uses less digits than its factorization.

11757665216 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16701252 (or 16701242 counting only the distinct ones).

The product of its digits is 529200, while the sum is 47.

The spelling of 11757665216 in words is "eleven billion, seven hundred fifty-seven million, six hundred sixty-five thousand, two hundred sixteen".