20265021075500 has 24 divisors (see below), whose sum is σ = 44258806029984. Its totient is φ = 8106008430000.

The previous prime is 20265021075493. The next prime is 20265021075511. The reversal of 20265021075500 is 557012056202.

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, 20265020576 + ... + 20265021575.

It is an arithmetic number, because the mean of its divisors is an integer number (1844116917916).

Almost surely, 2^{20265021075500} is an apocalyptic number.

20265021075500 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20265021075500 is an abundant number, since it is smaller than the sum of its proper divisors (23993784954484).

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

20265021075500 is a wasteful number, since it uses less digits than its factorization.

20265021075500 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 40530042170 (or 40530042158 counting only the distinct ones).

The product of its (nonzero) digits is 42000, while the sum is 35.

The spelling of 20265021075500 in words is "twenty trillion, two hundred sixty-five billion, twenty-one million, seventy-five thousand, five hundred".