111156893604 has 81 divisors (see below), whose sum is σ = 283464203841. Its totient is φ = 36727564320.

The previous prime is 111156893581. The next prime is 111156893609. The reversal of 111156893604 is 406398651111.

The square root of 111156893604 is 333402.

It is a perfect power (a square), and thus also a powerful number.

111156893604 is a `hidden beast` number, since 11 + 11 + 568 + 9 + 3 + 60 + 4 = 666.

It can be written as a sum of positive squares in only one way, i.e., 1224860004 + 109932033600 = 34998^2 + 331560^2 .

It is a super-2 number, since 2×111156893604² (a number of 23 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 111156893604.

It is not an unprimeable number, because it can be changed into a prime (111156893609) by changing a digit.

It is a polite number, since it can be written in 26 ways as a sum of consecutive naturals, for example, 362074419 + ... + 362074725.

Almost surely, 2^111156893604 is an apocalyptic number.

111156893604 is the 333402-nd square number.

It is an amenable number.

111156893604 is an abundant number, since it is smaller than the sum of its proper divisors (172307310237).

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

111156893604 is an equidigital number, since it uses as much as digits as its factorization.

111156893604 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 986 (or 493 counting only the distinct ones).

The product of its (nonzero) digits is 155520, while the sum is 45.

The spelling of 111156893604 in words is "one hundred eleven billion, one hundred fifty-six million, eight hundred ninety-three thousand, six hundred four".