111606556612 has 24 divisors (see below), whose sum is σ = 197295927192. Its totient is φ = 55236576000.

The previous prime is 111606556603. The next prime is 111606556613. The reversal of 111606556612 is 216655606111.

It can be written as a sum of positive squares in 4 ways, for example, as 48617604036 + 62988952576 = 220494^2 + 250976^2 .

It is a hoax number, since the sum of its digits (40) coincides with the sum of the digits of its distinct prime factors.

It is not an unprimeable number, because it can be changed into a prime (111606556613) 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, 1636312 + ... + 1703152.

It is an arithmetic number, because the mean of its divisors is an integer number (8220663633).

Almost surely, 2^111606556612 is an apocalyptic number.

It is an amenable number.

111606556612 is a deficient number, since it is larger than the sum of its proper divisors (85689370580).

111606556612 is a wasteful number, since it uses less digits than its factorization.

111606556612 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 71079 (or 71077 counting only the distinct ones).

The product of its (nonzero) digits is 64800, while the sum is 40.

The spelling of 111606556612 in words is "one hundred eleven billion, six hundred six million, five hundred fifty-six thousand, six hundred twelve".