220555371672 has 24 divisors (see below), whose sum is σ = 597337465140. Its totient is φ = 73518457200.

The previous prime is 220555371661. The next prime is 220555371689. The reversal of 220555371672 is 276173555022.

220555371672 is a `hidden beast` number, since 2 + 2 + 0 + 55 + 537 + 1 + 67 + 2 = 666.

220555371672 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (24).

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, 1531634454 + ... + 1531634597.

Almost surely, 2^220555371672 is an apocalyptic number.

It is an amenable number.

220555371672 is an abundant number, since it is smaller than the sum of its proper divisors (376782093468).

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

220555371672 is a wasteful number, since it uses less digits than its factorization.

220555371672 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3063269063 (or 3063269056 counting only the distinct ones).

The product of its (nonzero) digits is 882000, while the sum is 45.

The spelling of 220555371672 in words is "two hundred twenty billion, five hundred fifty-five million, three hundred seventy-one thousand, six hundred seventy-two".