220998879975488 has 56 divisors (see below), whose sum is σ = 468773075070720. Its totient is φ = 103117186810880.

The previous prime is 220998879975487. The next prime is 220998879975493. The reversal of 220998879975488 is 884579978899022.

It is a self number, because there is not a number n which added to its sum of digits gives 220998879975488.

It is not an unprimeable number, because it can be changed into a prime (220998879975487) 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, 1830855608 + ... + 1830976311.

It is an arithmetic number, because the mean of its divisors is an integer number (8370947769120).

Almost surely, 2^{220998879975488} is an apocalyptic number.

It is an amenable number.

220998879975488 is an abundant number, since it is smaller than the sum of its proper divisors (247774195095232).

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

220998879975488 is a wasteful number, since it uses less digits than its factorization.

220998879975488 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3661831995 (or 3661831985 counting only the distinct ones).

The product of its (nonzero) digits is 105345515520, while the sum is 95.

The spelling of 220998879975488 in words is "two hundred twenty trillion, nine hundred ninety-eight billion, eight hundred seventy-nine million, nine hundred seventy-five thousand, four hundred eighty-eight".