1325373664 has 12 divisors (see below), whose sum is σ = 2609329464. Its totient is φ = 662686816.

The previous prime is 1325373629. The next prime is 1325373733. The reversal of 1325373664 is 4663735231.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20708932 + ... + 20708995.

It is an arithmetic number, because the mean of its divisors is an integer number (217444122).

Almost surely, 2^1325373664 is an apocalyptic number.

It is an amenable number.

1325373664 is a deficient number, since it is larger than the sum of its proper divisors (1283955800).

1325373664 is an equidigital number, since it uses as much as digits as its factorization.

1325373664 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 41417937 (or 41417929 counting only the distinct ones).

The product of its digits is 272160, while the sum is 40.

The square root of 1325373664 is about 36405.6817543636. The cubic root of 1325373664 is about 1098.4478560721.

The spelling of 1325373664 in words is "one billion, three hundred twenty-five million, three hundred seventy-three thousand, six hundred sixty-four".