13056418520 has 32 divisors (see below), whose sum is σ = 30060130320. Its totient is φ = 5101111680.

The previous prime is 13056418517. The next prime is 13056418561. The reversal of 13056418520 is 2581465031.

It is a congruent number.

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, 3793751 + ... + 3797190.

Almost surely, 2^13056418520 is an apocalyptic number.

13056418520 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

13056418520 is an abundant number, since it is smaller than the sum of its proper divisors (17003711800).

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

13056418520 is a wasteful number, since it uses less digits than its factorization.

13056418520 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7590995 (or 7590991 counting only the distinct ones).

The product of its (nonzero) digits is 28800, while the sum is 35.

The spelling of 13056418520 in words is "thirteen billion, fifty-six million, four hundred eighteen thousand, five hundred twenty".