111005610666 has 16 divisors (see below), whose sum is σ = 222021860544. Its totient is φ = 37000097024.

The previous prime is 111005610637. The next prime is 111005610671. The reversal of 111005610666 is 666016500111.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 304311 + ... + 560906.

It is an arithmetic number, because the mean of its divisors is an integer number (13876366284).

Almost surely, 2^111005610666 is an apocalyptic number.

111005610666 is an abundant number, since it is smaller than the sum of its proper divisors (111016249878).

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

111005610666 is a wasteful number, since it uses less digits than its factorization.

111005610666 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 886605.

The product of its (nonzero) digits is 6480, while the sum is 33.

The spelling of 111005610666 in words is "one hundred eleven billion, five million, six hundred ten thousand, six hundred sixty-six".