1164530565 has 48 divisors (see below), whose sum is σ = 2238178176. Its totient is φ = 555350400.

The previous prime is 1164530533. The next prime is 1164530581. The reversal of 1164530565 is 5650354611.

1164530565 is a `hidden beast` number, since 1 + 1 + 64 + 5 + 30 + 565 = 666.

It is not a de Polignac number, because 1164530565 - 2⁵ = 1164530533 is a prime.

It is a super-2 number, since 2×1164530565² = 2712262873638438450, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 10912 + ... + 49478.

It is an arithmetic number, because the mean of its divisors is an integer number (46628712).

Almost surely, 2^1164530565 is an apocalyptic number.

1164530565 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1164530565 is a deficient number, since it is larger than the sum of its proper divisors (1073647611).

1164530565 is a wasteful number, since it uses less digits than its factorization.

1164530565 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 38650 (or 38647 counting only the distinct ones).

The product of its (nonzero) digits is 54000, while the sum is 36.

The square root of 1164530565 is about 34125.2189003968. The cubic root of 1164530565 is about 1052.0837125021.

The spelling of 1164530565 in words is "one billion, one hundred sixty-four million, five hundred thirty thousand, five hundred sixty-five".