111665061605010 has 64 divisors (see below), whose sum is σ = 281782269780480. Its totient is φ = 28279224180480.

The previous prime is 111665061604973. The next prime is 111665061605029. The reversal of 111665061605010 is 10506160566111.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 111665061605010.

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, 1052001402 + ... + 1052107541.

It is an arithmetic number, because the mean of its divisors is an integer number (4402847965320).

Almost surely, 2^{111665061605010} is an apocalyptic number.

111665061605010 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

111665061605010 is an abundant number, since it is smaller than the sum of its proper divisors (170117208175470).

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

111665061605010 is a wasteful number, since it uses less digits than its factorization.

111665061605010 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2104109043.

The product of its (nonzero) digits is 32400, while the sum is 39.

The spelling of 111665061605010 in words is "one hundred eleven trillion, six hundred sixty-five billion, sixty-one million, six hundred five thousand, ten".