20376752472520 has 16 divisors (see below), whose sum is σ = 45847693063260. Its totient is φ = 8150700988992.

The previous prime is 20376752472469. The next prime is 20376752472521. The reversal of 20376752472520 is 2527425767302.

It can be written as a sum of positive squares in 2 ways, for example, as 20301927246756 + 74825225764 = 4505766^2 + 273542^2 .

It is not an unprimeable number, because it can be changed into a prime (20376752472521) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 254709405867 + ... + 254709405946.

Almost surely, 2^{20376752472520} is an apocalyptic number.

20376752472520 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20376752472520 is an abundant number, since it is smaller than the sum of its proper divisors (25470940590740).

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

20376752472520 is a wasteful number, since it uses less digits than its factorization.

20376752472520 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 509418811824 (or 509418811820 counting only the distinct ones).

The product of its (nonzero) digits is 9878400, while the sum is 52.

The spelling of 20376752472520 in words is "twenty trillion, three hundred seventy-six billion, seven hundred fifty-two million, four hundred seventy-two thousand, five hundred twenty".