220565465160644 has 24 divisors (see below), whose sum is σ = 395310876813048. Its totient is φ = 107650649272320.

The previous prime is 220565465160619. The next prime is 220565465160661. The reversal of 220565465160644 is 446061564565022.

It can be written as a sum of positive squares in 4 ways, for example, as 27385210015744 + 193180255144900 = 5233088^2 + 13898930^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 220565465160644.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3893586017 + ... + 3893642664.

It is an arithmetic number, because the mean of its divisors is an integer number (16471286533877).

Almost surely, 2^{220565465160644} is an apocalyptic number.

It is an amenable number.

220565465160644 is a deficient number, since it is larger than the sum of its proper divisors (174745411652404).

220565465160644 is a wasteful number, since it uses less digits than its factorization.

220565465160644 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7787228855 (or 7787228853 counting only the distinct ones).

The product of its (nonzero) digits is 41472000, while the sum is 56.

The spelling of 220565465160644 in words is "two hundred twenty trillion, five hundred sixty-five billion, four hundred sixty-five million, one hundred sixty thousand, six hundred forty-four".