520072165442 has 32 divisors (see below), whose sum is σ = 811368351360. Its totient is φ = 249813083520.

The previous prime is 520072165397. The next prime is 520072165531. The reversal of 520072165442 is 244561270025.

It is a junction number, because it is equal to n+sod(n) for n = 520072165396 and 520072165405.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 15844784 + ... + 15877572.

It is an arithmetic number, because the mean of its divisors is an integer number (25355260980).

Almost surely, 2^520072165442 is an apocalyptic number.

520072165442 is a deficient number, since it is larger than the sum of its proper divisors (291296185918).

520072165442 is a wasteful number, since it uses less digits than its factorization.

520072165442 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 35786.

The product of its (nonzero) digits is 134400, while the sum is 38.

The spelling of 520072165442 in words is "five hundred twenty billion, seventy-two million, one hundred sixty-five thousand, four hundred forty-two".