1164681916 has 12 divisors (see below), whose sum is σ = 2087905680. Its totient is φ = 568137440.

The previous prime is 1164681907. The next prime is 1164681919. The reversal of 1164681916 is 6191864611.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1164681919) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3550696 + ... + 3551023.

It is an arithmetic number, because the mean of its divisors is an integer number (173992140).

Almost surely, 2^1164681916 is an apocalyptic number.

It is an amenable number.

1164681916 is a deficient number, since it is larger than the sum of its proper divisors (923223764).

1164681916 is a wasteful number, since it uses less digits than its factorization.

1164681916 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7101764 (or 7101762 counting only the distinct ones).

The product of its digits is 62208, while the sum is 43.

The square root of 1164681916 is about 34127.4364111927. The cubic root of 1164681916 is about 1052.1292893863.

The spelling of 1164681916 in words is "one billion, one hundred sixty-four million, six hundred eighty-one thousand, nine hundred sixteen".