20374516400 has 120 divisors (see below), whose sum is σ = 56086573920. Its totient is φ = 6967572480.

The previous prime is 20374516391. The next prime is 20374516423. The reversal of 20374516400 is 461547302.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1102436 + ... + 1120764.

It is an arithmetic number, because the mean of its divisors is an integer number (467388116).

Almost surely, 2^20374516400 is an apocalyptic number.

20374516400 is a gapful number since it is divisible by the number (20) 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 20374516400, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (28043286960).

20374516400 is an abundant number, since it is smaller than the sum of its proper divisors (35712057520).

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

20374516400 is a wasteful number, since it uses less digits than its factorization.

20374516400 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18751 (or 18740 counting only the distinct ones).

The product of its (nonzero) digits is 20160, while the sum is 32.

The spelling of 20374516400 in words is "twenty billion, three hundred seventy-four million, five hundred sixteen thousand, four hundred".