20554108008 has 96 divisors (see below), whose sum is σ = 60788037600. Its totient is φ = 5773047168.

The previous prime is 20554107991. The next prime is 20554108013. The reversal of 20554108008 is 80080145502.

It is a self number, because there is not a number n which added to its sum of digits gives 20554108008.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 78735 + ... + 217502.

It is an arithmetic number, because the mean of its divisors is an integer number (633208725).

Almost surely, 2^20554108008 is an apocalyptic number.

20554108008 is a gapful number since it is divisible by the number (28) formed by its first and last digit.

It is an amenable number.

20554108008 is an abundant number, since it is smaller than the sum of its proper divisors (40233929592).

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

20554108008 is a wasteful number, since it uses less digits than its factorization.

20554108008 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 296319 (or 296308 counting only the distinct ones).

The product of its (nonzero) digits is 12800, while the sum is 33.

The spelling of 20554108008 in words is "twenty billion, five hundred fifty-four million, one hundred eight thousand, eight".