20013725755434 has 16 divisors (see below), whose sum is σ = 40034725327872. Its totient is φ = 6670029615648.

The previous prime is 20013725755391. The next prime is 20013725755447. The reversal of 20013725755434 is 43455752731002.

It is a super-2 number, since 2×20013725755434² (a number of 27 digits) contains 22 as substring.

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, 303039939 + ... + 303105974.

It is an arithmetic number, because the mean of its divisors is an integer number (2502170332992).

Almost surely, 2^{20013725755434} is an apocalyptic number.

20013725755434 is an abundant number, since it is smaller than the sum of its proper divisors (20020999572438).

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

20013725755434 is a wasteful number, since it uses less digits than its factorization.

20013725755434 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 606151421.

The product of its (nonzero) digits is 3528000, while the sum is 48.

The spelling of 20013725755434 in words is "twenty trillion, thirteen billion, seven hundred twenty-five million, seven hundred fifty-five thousand, four hundred thirty-four".