1166140456 has 32 divisors (see below), whose sum is σ = 2377589760. Its totient is φ = 532988352.

The previous prime is 1166140439. The next prime is 1166140513. The reversal of 1166140456 is 6540416611.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 43720 + ... + 65143.

It is an arithmetic number, because the mean of its divisors is an integer number (74299680).

Almost surely, 2^1166140456 is an apocalyptic number.

It is an amenable number.

1166140456 is an abundant number, since it is smaller than the sum of its proper divisors (1211449304).

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

1166140456 is a wasteful number, since it uses less digits than its factorization.

1166140456 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 108985 (or 108981 counting only the distinct ones).

The product of its (nonzero) digits is 17280, while the sum is 34.

The square root of 1166140456 is about 34148.7987490043. The cubic root of 1166140456 is about 1052.5683026746.

The spelling of 1166140456 in words is "one billion, one hundred sixty-six million, one hundred forty thousand, four hundred fifty-six".