1166168256 has 112 divisors (see below), whose sum is σ = 3444532608. Its totient is φ = 345139200.

The previous prime is 1166168251. The next prime is 1166168273. The reversal of 1166168256 is 6528616611.

It is not an unprimeable number, because it can be changed into a prime (1166168251) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 84396 + ... + 97236.

Almost surely, 2^1166168256 is an apocalyptic number.

1166168256 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1166168256, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1722266304).

1166168256 is an abundant number, since it is smaller than the sum of its proper divisors (2278364352).

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

1166168256 is a wasteful number, since it uses less digits than its factorization.

1166168256 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12910 (or 12900 counting only the distinct ones).

The product of its digits is 103680, while the sum is 42.

The square root of 1166168256 is about 34149.2057887149. The cubic root of 1166168256 is about 1052.5766667804.

The spelling of 1166168256 in words is "one billion, one hundred sixty-six million, one hundred sixty-eight thousand, two hundred fifty-six".