13145456264 has 8 divisors (see below), whose sum is σ = 24647730510. Its totient is φ = 6572728128.

The previous prime is 13145456249. The next prime is 13145456293. The reversal of 13145456264 is 46265454131.

It can be written as a sum of positive squares in only one way, i.e., 11588522500 + 1556933764 = 107650^2 + 39458^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 821591009 + ... + 821591024.

Almost surely, 2^13145456264 is an apocalyptic number.

It is an amenable number.

13145456264 is a deficient number, since it is larger than the sum of its proper divisors (11502274246).

13145456264 is a wasteful number, since it uses less digits than its factorization.

13145456264 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1643182039 (or 1643182035 counting only the distinct ones).

The product of its digits is 345600, while the sum is 41.

The spelling of 13145456264 in words is "thirteen billion, one hundred forty-five million, four hundred fifty-six thousand, two hundred sixty-four".