20051746125420 has 24 divisors (see below), whose sum is σ = 56144889151344. Its totient is φ = 5347132300096.

The previous prime is 20051746125401. The next prime is 20051746125449. The reversal of 20051746125420 is 2452164715002.

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, 167097884319 + ... + 167097884438.

It is an arithmetic number, because the mean of its divisors is an integer number (2339370381306).

Almost surely, 2^{20051746125420} is an apocalyptic number.

20051746125420 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20051746125420 is an abundant number, since it is smaller than the sum of its proper divisors (36093143025924).

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

20051746125420 is a wasteful number, since it uses less digits than its factorization.

20051746125420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 334195768769 (or 334195768767 counting only the distinct ones).

The product of its (nonzero) digits is 134400, while the sum is 39.

The spelling of 20051746125420 in words is "twenty trillion, fifty-one billion, seven hundred forty-six million, one hundred twenty-five thousand, four hundred twenty".