20554298180 has 48 divisors (see below), whose sum is σ = 46792268544. Its totient is φ = 7539004800.

The previous prime is 20554298153. The next prime is 20554298251. The reversal of 20554298180 is 8189245502.

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, 222512 + ... + 301031.

It is an arithmetic number, because the mean of its divisors is an integer number (974838928).

Almost surely, 2^20554298180 is an apocalyptic number.

20554298180 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20554298180 is an abundant number, since it is smaller than the sum of its proper divisors (26237970364).

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

20554298180 is a wasteful number, since it uses less digits than its factorization.

20554298180 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 523716 (or 523714 counting only the distinct ones).

The product of its (nonzero) digits is 230400, while the sum is 44.

The spelling of 20554298180 in words is "twenty billion, five hundred fifty-four million, two hundred ninety-eight thousand, one hundred eighty".