111055666564 has 12 divisors (see below), whose sum is σ = 194352713100. Its totient is φ = 55526319968.

The previous prime is 111055666559. The next prime is 111055666597. The reversal of 111055666564 is 465666550111.

It can be written as a sum of positive squares in 2 ways, for example, as 64308902464 + 46746764100 = 253592^2 + 216210^2 .

It is a super-2 number, since 2×111055666564² (a number of 23 digits) contains 22 as substring.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 204319 + ... + 513670.

It is an arithmetic number, because the mean of its divisors is an integer number (16196059425).

Almost surely, 2^111055666564 is an apocalyptic number.

It is an amenable number.

111055666564 is a deficient number, since it is larger than the sum of its proper divisors (83297046536).

111055666564 is a wasteful number, since it uses less digits than its factorization.

111055666564 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 756662 (or 756660 counting only the distinct ones).

The product of its (nonzero) digits is 648000, while the sum is 46.

The spelling of 111055666564 in words is "one hundred eleven billion, fifty-five million, six hundred sixty-six thousand, five hundred sixty-four".