1165532664 has 32 divisors (see below), whose sum is σ = 2918401920. Its totient is φ = 387901536.

The previous prime is 1165532657. The next prime is 1165532681. The reversal of 1165532664 is 4662355611.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 22332 + ... + 53195.

It is an arithmetic number, because the mean of its divisors is an integer number (91200060).

Almost surely, 2^1165532664 is an apocalyptic number.

It is an amenable number.

1165532664 is an abundant number, since it is smaller than the sum of its proper divisors (1752869256).

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

1165532664 is a wasteful number, since it uses less digits than its factorization.

1165532664 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 76179 (or 76175 counting only the distinct ones).

The product of its digits is 129600, while the sum is 39.

The square root of 1165532664 is about 34139.8984181266. The cubic root of 1165532664 is about 1052.3854048178.

The spelling of 1165532664 in words is "one billion, one hundred sixty-five million, five hundred thirty-two thousand, six hundred sixty-four".