220889879715924 has 18 divisors (see below), whose sum is σ = 558360529282010. Its totient is φ = 73629959905296.

The previous prime is 220889879715853. The next prime is 220889879715941. The reversal of 220889879715924 is 429517978988022.

220889879715924 is a `hidden beast` number, since 2 + 208 + 89 + 87 + 97 + 159 + 24 = 666.

It can be written as a sum of positive squares in only one way, i.e., 149440356176400 + 71449523539524 = 12224580^2 + 8452782^2 .

It is a tau number, because it is divible by the number of its divisors (18).

It is a super-3 number, since 3×220889879715924³ (a number of 44 digits) contains 333 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 3067914996019 + ... + 3067914996090.

Almost surely, 2^{220889879715924} is an apocalyptic number.

It is an amenable number.

220889879715924 is an abundant number, since it is smaller than the sum of its proper divisors (337470649566086).

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

220889879715924 is a wasteful number, since it uses less digits than its factorization.

220889879715924 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6135829992119 (or 6135829992114 counting only the distinct ones).

The product of its (nonzero) digits is 2926264320, while the sum is 81.

The spelling of 220889879715924 in words is "two hundred twenty trillion, eight hundred eighty-nine billion, eight hundred seventy-nine million, seven hundred fifteen thousand, nine hundred twenty-four".