220668172007572 has 24 divisors (see below), whose sum is σ = 406952280786240. Its totient is φ = 104409185489280.

The previous prime is 220668172007567. The next prime is 220668172007641. The reversal of 220668172007572 is 275700271866022.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1636645429 + ... + 1636780252.

It is an arithmetic number, because the mean of its divisors is an integer number (16956345032760).

Almost surely, 2^{220668172007572} is an apocalyptic number.

It is an amenable number.

220668172007572 is a deficient number, since it is larger than the sum of its proper divisors (186284108778668).

220668172007572 is a wasteful number, since it uses less digits than its factorization.

220668172007572 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3273426591 (or 3273426589 counting only the distinct ones).

The product of its (nonzero) digits is 7902720, while the sum is 55.

The spelling of 220668172007572 in words is "two hundred twenty trillion, six hundred sixty-eight billion, one hundred seventy-two million, seven thousand, five hundred seventy-two".