1604364265 has 16 divisors (see below), whose sum is σ = 2200972032. Its totient is φ = 1099785024.

The previous prime is 1604364227. The next prime is 1604364277. The reversal of 1604364265 is 5624634061.

It is a cyclic number.

It is not a de Polignac number, because 1604364265 - 2²⁵ = 1570809833 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 154827 + ... + 164863.

It is an arithmetic number, because the mean of its divisors is an integer number (137560752).

Almost surely, 2^1604364265 is an apocalyptic number.

It is an amenable number.

1604364265 is a deficient number, since it is larger than the sum of its proper divisors (596607767).

1604364265 is a wasteful number, since it uses less digits than its factorization.

1604364265 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14616.

The product of its (nonzero) digits is 103680, while the sum is 37.

The square root of 1604364265 is about 40054.5161623505. The cubic root of 1604364265 is about 1170.6695622079.

It can be divided in two parts, 16043 and 64265, that added together give a palindrome (80308).

The spelling of 1604364265 in words is "one billion, six hundred four million, three hundred sixty-four thousand, two hundred sixty-five".