20501008700800 has 48 divisors (see below), whose sum is σ = 50643898064100. Its totient is φ = 8200403479040.

The previous prime is 20501008700797. The next prime is 20501008700833. The reversal of 20501008700800 is 800780010502.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 3203279410 + ... + 3203285809.

Almost surely, 2^{20501008700800} is an apocalyptic number.

20501008700800 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20501008700800 is an abundant number, since it is smaller than the sum of its proper divisors (30142889363300).

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

20501008700800 is an equidigital number, since it uses as much as digits as its factorization.

20501008700800 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6406565243 (or 6406565226 counting only the distinct ones).

The product of its (nonzero) digits is 4480, while the sum is 31.

The spelling of 20501008700800 in words is "twenty trillion, five hundred one billion, eight million, seven hundred thousand, eight hundred".