220664882680 has 64 divisors (see below), whose sum is σ = 543559805280. Its totient is φ = 79956172800.

The previous prime is 220664882671. The next prime is 220664882707. The reversal of 220664882680 is 86288466022.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 768729 + ... + 1016008.

Almost surely, 2^220664882680 is an apocalyptic number.

220664882680 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

220664882680 is an abundant number, since it is smaller than the sum of its proper divisors (322894922600).

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

220664882680 is a wasteful number, since it uses less digits than its factorization.

220664882680 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1785040 (or 1785036 counting only the distinct ones).

The product of its (nonzero) digits is 3538944, while the sum is 52.

The spelling of 220664882680 in words is "two hundred twenty billion, six hundred sixty-four million, eight hundred eighty-two thousand, six hundred eighty".