1375665604 has 24 divisors (see below), whose sum is σ = 2513403648. Its totient is φ = 657581760.

The previous prime is 1375665601. The next prime is 1375665649. The reversal of 1375665604 is 4065665731.

It is a hoax number, since the sum of its digits (43) coincides with the sum of the digits of its distinct prime factors.

It is not an unprimeable number, because it can be changed into a prime (1375665601) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 297349 + ... + 301939.

It is an arithmetic number, because the mean of its divisors is an integer number (104725152).

Almost surely, 2^1375665604 is an apocalyptic number.

It is an amenable number.

1375665604 is a deficient number, since it is larger than the sum of its proper divisors (1137738044).

1375665604 is a wasteful number, since it uses less digits than its factorization.

1375665604 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7875 (or 7873 counting only the distinct ones).

The product of its (nonzero) digits is 453600, while the sum is 43.

The square root of 1375665604 is about 37089.9663521012. The cubic root of 1375665604 is about 1112.1694454363.

The spelling of 1375665604 in words is "one billion, three hundred seventy-five million, six hundred sixty-five thousand, six hundred four".