665166051110 has 16 divisors (see below), whose sum is σ = 1306144246032. Its totient is φ = 241878564000.

The previous prime is 665166051023. The next prime is 665166051133. The reversal of 665166051110 is 11150661566.

It is a super-2 number, since 2×665166051110² (a number of 24 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3023481941 + ... + 3023482160.

It is an arithmetic number, because the mean of its divisors is an integer number (81634015377).

Almost surely, 2^665166051110 is an apocalyptic number.

665166051110 is a deficient number, since it is larger than the sum of its proper divisors (640978194922).

665166051110 is a wasteful number, since it uses less digits than its factorization.

665166051110 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6046964119.

The product of its (nonzero) digits is 32400, while the sum is 38.

The spelling of 665166051110 in words is "six hundred sixty-five billion, one hundred sixty-six million, fifty-one thousand, one hundred ten".