220665166562016 has 108 divisors (see below), whose sum is σ = 689749615527336. Its totient is φ = 66868232280960.

The previous prime is 220665166562003. The next prime is 220665166562063. The reversal of 220665166562016 is 610265661566022.

It is a happy number.

220665166562016 is a `hidden beast` number, since 2 + 2 + 0 + 6 + 6 + 5 + 1 + 6 + 6 + 5 + 620 + 1 + 6 = 666.

It is a hoax number, since the sum of its digits (54) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 3166074636 + ... + 3166144331.

It is an arithmetic number, because the mean of its divisors is an integer number (6386570514142).

Almost surely, 2^{220665166562016} is an apocalyptic number.

It is an amenable number.

220665166562016 is an abundant number, since it is smaller than the sum of its proper divisors (469084448965320).

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

220665166562016 is a wasteful number, since it uses less digits than its factorization.

220665166562016 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6332219005 (or 6332218983 counting only the distinct ones).

The product of its (nonzero) digits is 9331200, while the sum is 54.

The spelling of 220665166562016 in words is "two hundred twenty trillion, six hundred sixty-five billion, one hundred sixty-six million, five hundred sixty-two thousand, sixteen".