1166090880 has 64 divisors (see below), whose sum is σ = 3716920800. Its totient is φ = 310957056.

The previous prime is 1166090879. The next prime is 1166090909. The reversal of 1166090880 is 880906611.

It is a tau number, because it is divible by the number of its divisors (64).

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 301750 + ... + 305589.

Almost surely, 2^1166090880 is an apocalyptic number.

1166090880 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1166090880 is an abundant number, since it is smaller than the sum of its proper divisors (2550829920).

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

1166090880 is an equidigital number, since it uses as much as digits as its factorization.

1166090880 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 607361 (or 607349 counting only the distinct ones).

The product of its (nonzero) digits is 20736, while the sum is 39.

The square root of 1166090880 is about 34148.0728592405. The cubic root of 1166090880 is about 1052.5533865567.

The spelling of 1166090880 in words is "one billion, one hundred sixty-six million, ninety thousand, eight hundred eighty".