220665166562017 has 8 divisors (see below), whose sum is σ = 232574267722400. Its totient is φ = 208785579904224.

The previous prime is 220665166562003. The next prime is 220665166562063. The reversal of 220665166562017 is 710265661566022.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 220665166562017 - 2²³ = 220665158173409 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (220665166568017) 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, 7378610292 + ... + 7378640197.

It is an arithmetic number, because the mean of its divisors is an integer number (29071783465300).

Almost surely, 2^{220665166562017} is an apocalyptic number.

It is an amenable number.

220665166562017 is a deficient number, since it is larger than the sum of its proper divisors (11909101160383).

220665166562017 is a wasteful number, since it uses less digits than its factorization.

220665166562017 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14757251295.

The product of its (nonzero) digits is 10886400, while the sum is 55.

The spelling of 220665166562017 in words is "two hundred twenty trillion, six hundred sixty-five billion, one hundred sixty-six million, five hundred sixty-two thousand, seventeen".