1165306564 has 24 divisors (see below), whose sum is σ = 2120935040. Its totient is φ = 559724256.

The previous prime is 1165306559. The next prime is 1165306567. The reversal of 1165306564 is 4656035611.

It is a Harshad number since it is a multiple of its sum of digits (37).

It is not an unprimeable number, because it can be changed into a prime (1165306567) 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, 38142 + ... + 61525.

Almost surely, 2^1165306564 is an apocalyptic number.

It is an amenable number.

1165306564 is a deficient number, since it is larger than the sum of its proper divisors (955628476).

1165306564 is a wasteful number, since it uses less digits than its factorization.

1165306564 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 99787 (or 99785 counting only the distinct ones).

The product of its (nonzero) digits is 64800, while the sum is 37.

The square root of 1165306564 is about 34136.5868826982. The cubic root of 1165306564 is about 1052.3173501748.

The spelling of 1165306564 in words is "one billion, one hundred sixty-five million, three hundred six thousand, five hundred sixty-four".