111065601666 has 64 divisors (see below), whose sum is σ = 231227568000. Its totient is φ = 35535822336.

The previous prime is 111065601653. The next prime is 111065601683. The reversal of 111065601666 is 666106560111.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 5628285 + ... + 5647983.

It is an arithmetic number, because the mean of its divisors is an integer number (3612930750).

Almost surely, 2^111065601666 is an apocalyptic number.

111065601666 is an abundant number, since it is smaller than the sum of its proper divisors (120161966334).

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

111065601666 is a wasteful number, since it uses less digits than its factorization.

111065601666 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20083.

The product of its (nonzero) digits is 38880, while the sum is 39.

The spelling of 111065601666 in words is "one hundred eleven billion, sixty-five million, six hundred one thousand, six hundred sixty-six".