20552922656 has 48 divisors (see below), whose sum is σ = 46255970880. Its totient is φ = 8806129920.

The previous prime is 20552922619. The next prime is 20552922661. The reversal of 20552922656 is 65622925502.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1090271 + ... + 1108961.

It is an arithmetic number, because the mean of its divisors is an integer number (963666060).

Almost surely, 2^20552922656 is an apocalyptic number.

It is an amenable number.

20552922656 is an abundant number, since it is smaller than the sum of its proper divisors (25703048224).

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

20552922656 is a wasteful number, since it uses less digits than its factorization.

20552922656 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23617 (or 23609 counting only the distinct ones).

The product of its (nonzero) digits is 648000, while the sum is 44.

The spelling of 20552922656 in words is "twenty billion, five hundred fifty-two million, nine hundred twenty-two thousand, six hundred fifty-six".