13013213664 has 96 divisors (see below), whose sum is σ = 37286355456. Its totient is φ = 3941150720.

The previous prime is 13013213663. The next prime is 13013213687. The reversal of 13013213664 is 46631231031.

It is a tau number, because it is divible by the number of its divisors (96).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13013213663) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3595984 + ... + 3599600.

It is an arithmetic number, because the mean of its divisors is an integer number (388399536).

Almost surely, 2^13013213664 is an apocalyptic number.

It is an amenable number.

13013213664 is an abundant number, since it is smaller than the sum of its proper divisors (24273141792).

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

13013213664 is a wasteful number, since it uses less digits than its factorization.

13013213664 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7048 (or 7040 counting only the distinct ones).

The product of its (nonzero) digits is 7776, while the sum is 30.

Adding to 13013213664 its reverse (46631231031), we get a palindrome (59644444695).

The spelling of 13013213664 in words is "thirteen billion, thirteen million, two hundred thirteen thousand, six hundred sixty-four".