1166864712 has 64 divisors (see below), whose sum is σ = 3194856000. Its totient is φ = 352944384.

The previous prime is 1166864711. The next prime is 1166864779. The reversal of 1166864712 is 2174686611.

It is a super-2 number, since 2×1166864712² = 2723146512221685888, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1166864711) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 13287 + ... + 50102.

It is an arithmetic number, because the mean of its divisors is an integer number (49919625).

Almost surely, 2^1166864712 is an apocalyptic number.

1166864712 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1166864712 is an abundant number, since it is smaller than the sum of its proper divisors (2027991288).

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

1166864712 is a wasteful number, since it uses less digits than its factorization.

1166864712 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 63470 (or 63466 counting only the distinct ones).

The product of its digits is 96768, while the sum is 42.

The square root of 1166864712 is about 34159.4015170055. The cubic root of 1166864712 is about 1052.7861641221.

The spelling of 1166864712 in words is "one billion, one hundred sixty-six million, eight hundred sixty-four thousand, seven hundred twelve".