1164617964 has 18 divisors (see below), whose sum is σ = 2943895500. Its totient is φ = 388205976.

The previous prime is 1164617947. The next prime is 1164617981. The reversal of 1164617964 is 4697164611.

1164617964 is a `hidden beast` number, since 116 + 461 + 79 + 6 + 4 = 666.

It is an interprime number because it is at equal distance from previous prime (1164617947) and next prime (1164617981).

It is a tau number, because it is divible by the number of its divisors (18).

It is a Smith number, since the sum of its digits (45) coincides with the sum of the digits of its prime factors.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 16175214 + ... + 16175285.

It is an arithmetic number, because the mean of its divisors is an integer number (163549750).

Almost surely, 2^1164617964 is an apocalyptic number.

It is an amenable number.

1164617964 is an abundant number, since it is smaller than the sum of its proper divisors (1779277536).

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

1164617964 is a wasteful number, since it uses less digits than its factorization.

1164617964 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32350509 (or 32350504 counting only the distinct ones).

The product of its digits is 217728, while the sum is 45.

The square root of 1164617964 is about 34126.4994395851. The cubic root of 1164617964 is about 1052.1100317667.

The spelling of 1164617964 in words is "one billion, one hundred sixty-four million, six hundred seventeen thousand, nine hundred sixty-four".