13145064664 has 32 divisors (see below), whose sum is σ = 25922125440. Its totient is φ = 6240499200.

The previous prime is 13145064637. The next prime is 13145064689. The reversal of 13145064664 is 46646054131.

It is a happy number.

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, 486897 + ... + 513184.

It is an arithmetic number, because the mean of its divisors is an integer number (810066420).

Almost surely, 2^13145064664 is an apocalyptic number.

It is an amenable number.

13145064664 is a deficient number, since it is larger than the sum of its proper divisors (12777060776).

13145064664 is a wasteful number, since it uses less digits than its factorization.

13145064664 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1000171 (or 1000167 counting only the distinct ones).

The product of its (nonzero) digits is 207360, while the sum is 40.

The spelling of 13145064664 in words is "thirteen billion, one hundred forty-five million, sixty-four thousand, six hundred sixty-four".