111664325656 has 32 divisors (see below), whose sum is σ = 226721804400. Its totient is φ = 51252635520.

The previous prime is 111664325653. The next prime is 111664325659. The reversal of 111664325656 is 656523466111.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (111664325653) and next prime (111664325659).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (111664325653) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2947186 + ... + 2984833.

Almost surely, 2^111664325656 is an apocalyptic number.

It is an amenable number.

111664325656 is an abundant number, since it is smaller than the sum of its proper divisors (115057478744).

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

111664325656 is a wasteful number, since it uses less digits than its factorization.

111664325656 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5932219 (or 5932215 counting only the distinct ones).

The product of its digits is 777600, while the sum is 46.

The spelling of 111664325656 in words is "one hundred eleven billion, six hundred sixty-four million, three hundred twenty-five thousand, six hundred fifty-six".