13213501164 has 42 divisors (see below), whose sum is σ = 34669588380. Its totient is φ = 4404499416.

The previous prime is 13213501123. The next prime is 13213501183. The reversal of 13213501164 is 46110531231.

It is a happy number.

13213501164 is a `hidden beast` number, since 132 + 13 + 501 + 16 + 4 = 666.

It is a super-2 number, since 2×13213501164² (a number of 21 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is an unprimeable number.

It is a polite number, since it can be written in 13 ways as a sum of consecutive naturals, for example, 2262774 + ... + 2268605.

It is an arithmetic number, because the mean of its divisors is an integer number (825466390).

Almost surely, 2^13213501164 is an apocalyptic number.

It is an amenable number.

13213501164 is an abundant number, since it is smaller than the sum of its proper divisors (21456087216).

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

13213501164 is an equidigital number, since it uses as much as digits as its factorization.

13213501164 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4531401 (or 4531384 counting only the distinct ones).

The product of its (nonzero) digits is 2160, while the sum is 27.

The spelling of 13213501164 in words is "thirteen billion, two hundred thirteen million, five hundred one thousand, one hundred sixty-four".