1164158918 has 16 divisors (see below), whose sum is σ = 1979542320. Its totient is φ = 509024736.

The previous prime is 1164158911. The next prime is 1164158923. The reversal of 1164158918 is 8198514611.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1164158911) 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, 1177805 + ... + 1178792.

It is an arithmetic number, because the mean of its divisors is an integer number (123721395).

Almost surely, 2^1164158918 is an apocalyptic number.

1164158918 is a deficient number, since it is larger than the sum of its proper divisors (815383402).

1164158918 is a wasteful number, since it uses less digits than its factorization.

1164158918 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2356631.

The product of its digits is 69120, while the sum is 44.

The square root of 1164158918 is about 34119.7731235130. The cubic root of 1164158918 is about 1051.9717803155.

The spelling of 1164158918 in words is "one billion, one hundred sixty-four million, one hundred fifty-eight thousand, nine hundred eighteen".