20554241205500 has 24 divisors (see below), whose sum is σ = 44890462793904. Its totient is φ = 8221696482000.

The previous prime is 20554241205473. The next prime is 20554241205517. The reversal of 20554241205500 is 550214245502.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 20554240706 + ... + 20554241705.

It is an arithmetic number, because the mean of its divisors is an integer number (1870435949746).

Almost surely, 2^{20554241205500} is an apocalyptic number.

20554241205500 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20554241205500 is an abundant number, since it is smaller than the sum of its proper divisors (24336221588404).

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

20554241205500 is a wasteful number, since it uses less digits than its factorization.

20554241205500 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 41108482430 (or 41108482418 counting only the distinct ones).

The product of its (nonzero) digits is 80000, while the sum is 35.

The spelling of 20554241205500 in words is "twenty trillion, five hundred fifty-four billion, two hundred forty-one million, two hundred five thousand, five hundred".