1166551110 has 48 divisors (see below), whose sum is σ = 3050605584. Its totient is φ = 309278016.

The previous prime is 1166551109. The next prime is 1166551123. The reversal of 1166551110 is 111556611.

1166551110 is a `hidden beast` number, since 1 + 1 + 6 + 655 + 1 + 1 + 1 + 0 = 666.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 21892 + ... + 53031.

It is an arithmetic number, because the mean of its divisors is an integer number (63554283).

Almost surely, 2^1166551110 is an apocalyptic number.

1166551110 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1166551110 is an abundant number, since it is smaller than the sum of its proper divisors (1884054474).

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

1166551110 is a wasteful number, since it uses less digits than its factorization.

1166551110 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 75109 (or 75106 counting only the distinct ones).

The product of its (nonzero) digits is 900, while the sum is 27.

The square root of 1166551110 is about 34154.8109349181. The cubic root of 1166551110 is about 1052.6918414399.

The spelling of 1166551110 in words is "one billion, one hundred sixty-six million, five hundred fifty-one thousand, one hundred ten".