20057712752 has 160 divisors (see below), whose sum is σ = 52957753344. Its totient is φ = 7117516800.

The previous prime is 20057712737. The next prime is 20057712827. The reversal of 20057712752 is 25721775002.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 633818 + ... + 664710.

Almost surely, 2^20057712752 is an apocalyptic number.

20057712752 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 20057712752, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (26478876672).

20057712752 is an abundant number, since it is smaller than the sum of its proper divisors (32900040592).

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

20057712752 is a wasteful number, since it uses less digits than its factorization.

20057712752 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30967 (or 30961 counting only the distinct ones).

The product of its (nonzero) digits is 68600, while the sum is 38.

The spelling of 20057712752 in words is "twenty billion, fifty-seven million, seven hundred twelve thousand, seven hundred fifty-two".