13145564686 has 64 divisors (see below), whose sum is σ = 21150720000. Its totient is φ = 6117914880.

The previous prime is 13145564681. The next prime is 13145564743. The reversal of 13145564686 is 68646554131.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13145564681) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 66058015 + ... + 66058213.

It is an arithmetic number, because the mean of its divisors is an integer number (330480000).

Almost surely, 2^13145564686 is an apocalyptic number.

13145564686 is a deficient number, since it is larger than the sum of its proper divisors (8005155314).

13145564686 is a wasteful number, since it uses less digits than its factorization.

13145564686 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 577.

The product of its digits is 2073600, while the sum is 49.

The spelling of 13145564686 in words is "thirteen billion, one hundred forty-five million, five hundred sixty-four thousand, six hundred eighty-six".