13215164920 has 16 divisors (see below), whose sum is σ = 29734121160. Its totient is φ = 5286065952.

The previous prime is 13215164839. The next prime is 13215164927. The reversal of 13215164920 is 2946151231.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13215164927) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 165189522 + ... + 165189601.

Almost surely, 2^13215164920 is an apocalyptic number.

13215164920 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

13215164920 is an abundant number, since it is smaller than the sum of its proper divisors (16518956240).

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

13215164920 is a wasteful number, since it uses less digits than its factorization.

13215164920 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 330379134 (or 330379130 counting only the distinct ones).

The product of its (nonzero) digits is 12960, while the sum is 34.

The spelling of 13215164920 in words is "thirteen billion, two hundred fifteen million, one hundred sixty-four thousand, nine hundred twenty".