1164642536 has 64 divisors (see below), whose sum is σ = 2351462400. Its totient is φ = 539492800.

The previous prime is 1164642533. The next prime is 1164642541. The reversal of 1164642536 is 6352464611.

It is a super-2 number, since 2×1164642536² = 2712784473321022592, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 1164642536.

It is not an unprimeable number, because it can be changed into a prime (1164642533) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 770021 + ... + 771531.

It is an arithmetic number, because the mean of its divisors is an integer number (36741600).

Almost surely, 2^1164642536 is an apocalyptic number.

It is an amenable number.

1164642536 is an abundant number, since it is smaller than the sum of its proper divisors (1186819864).

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

1164642536 is a wasteful number, since it uses less digits than its factorization.

1164642536 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1670 (or 1666 counting only the distinct ones).

The product of its digits is 103680, while the sum is 38.

The square root of 1164642536 is about 34126.8594511713. The cubic root of 1164642536 is about 1052.1174311219.

The spelling of 1164642536 in words is "one billion, one hundred sixty-four million, six hundred forty-two thousand, five hundred thirty-six".