20655707160 has 64 divisors (see below), whose sum is σ = 67600500480. Its totient is φ = 5007443840.

The previous prime is 20655707153. The next prime is 20655707173. The reversal of 20655707160 is 6170755602.

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, 7822812 + ... + 7825451.

It is an arithmetic number, because the mean of its divisors is an integer number (1056257820).

Almost surely, 2^20655707160 is an apocalyptic number.

20655707160 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20655707160 is an abundant number, since it is smaller than the sum of its proper divisors (46944793320).

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

20655707160 is a wasteful number, since it uses less digits than its factorization.

20655707160 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15648288 (or 15648284 counting only the distinct ones).

The product of its (nonzero) digits is 88200, while the sum is 39.

The spelling of 20655707160 in words is "twenty billion, six hundred fifty-five million, seven hundred seven thousand, one hundred sixty".