1166515564 has 48 divisors (see below), whose sum is σ = 2248646400. Its totient is φ = 527034816.

The previous prime is 1166515543. The next prime is 1166515577. The reversal of 1166515564 is 4655156611.

It is a super-2 number, since 2×1166515564² = 2721517122108476192, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 815602 + ... + 817030.

It is an arithmetic number, because the mean of its divisors is an integer number (46846800).

Almost surely, 2^1166515564 is an apocalyptic number.

It is an amenable number.

1166515564 is a deficient number, since it is larger than the sum of its proper divisors (1082130836).

1166515564 is a wasteful number, since it uses less digits than its factorization.

1166515564 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1942 (or 1940 counting only the distinct ones).

The product of its digits is 108000, while the sum is 40.

The square root of 1166515564 is about 34154.2905650227. The cubic root of 1166515564 is about 1052.6811491339.

The spelling of 1166515564 in words is "one billion, one hundred sixty-six million, five hundred fifteen thousand, five hundred sixty-four".