111605046666 has 16 divisors (see below), whose sum is σ = 223849668000. Its totient is φ = 37095086448.

The previous prime is 111605046661. The next prime is 111605046689. The reversal of 111605046666 is 666640506111.

It is not an unprimeable number, because it can be changed into a prime (111605046661) 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, 26646676 + ... + 26650863.

It is an arithmetic number, because the mean of its divisors is an integer number (13990604250).

Almost surely, 2^111605046666 is an apocalyptic number.

111605046666 is an abundant number, since it is smaller than the sum of its proper divisors (112244621334).

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

111605046666 is a wasteful number, since it uses less digits than its factorization.

111605046666 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 53297893.

The product of its (nonzero) digits is 155520, while the sum is 42.

The spelling of 111605046666 in words is "one hundred eleven billion, six hundred five million, forty-six thousand, six hundred sixty-six".