1164644604 has 36 divisors (see below), whose sum is σ = 2959234096. Its totient is φ = 386201088.

The previous prime is 1164644581. The next prime is 1164644609. The reversal of 1164644604 is 4064464611.

1164644604 is a `hidden beast` number, since 1 + 1 + 6 + 4 + 6 + 44 + 604 = 666.

It is a tau number, because it is divible by the number of its divisors (36).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1164644609) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 76864 + ... + 90759.

Almost surely, 2^1164644604 is an apocalyptic number.

It is an amenable number.

1164644604 is an abundant number, since it is smaller than the sum of its proper divisors (1794589492).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1164644604 is a wasteful number, since it uses less digits than its factorization.

1164644604 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 167826 (or 167821 counting only the distinct ones).

The product of its (nonzero) digits is 55296, while the sum is 36.

The square root of 1164644604 is about 34126.8897498732. The cubic root of 1164644604 is about 1052.1180538530.

The spelling of 1164644604 in words is "one billion, one hundred sixty-four million, six hundred forty-four thousand, six hundred four".