1166255376 has 80 divisors (see below), whose sum is σ = 3539565120. Its totient is φ = 326223360.

The previous prime is 1166255357. The next prime is 1166255393. The reversal of 1166255376 is 6735526611.

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 15 ways as a sum of consecutive naturals, for example, 78091 + ... + 91818.

It is an arithmetic number, because the mean of its divisors is an integer number (44244564).

Almost surely, 2^1166255376 is an apocalyptic number.

1166255376 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

1166255376 is an abundant number, since it is smaller than the sum of its proper divisors (2373309744).

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

1166255376 is a wasteful number, since it uses less digits than its factorization.

1166255376 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 169944 (or 169938 counting only the distinct ones).

The product of its digits is 226800, while the sum is 42.

The square root of 1166255376 is about 34150.4813436063. The cubic root of 1166255376 is about 1052.6028774623.

The spelling of 1166255376 in words is "one billion, one hundred sixty-six million, two hundred fifty-five thousand, three hundred seventy-six".