1166893856 has 24 divisors (see below), whose sum is σ = 2298340044. Its totient is φ = 583188480.

The previous prime is 1166893853. The next prime is 1166893867. The reversal of 1166893856 is 6583986611.

It can be written as a sum of positive squares in 2 ways, for example, as 1146499600 + 20394256 = 33860^2 + 4516^2 .

It is a junction number, because it is equal to n+sod(n) for n = 1166893798 and 1166893807.

It is not an unprimeable number, because it can be changed into a prime (1166893853) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 80096 + ... + 93536.

Almost surely, 2^1166893856 is an apocalyptic number.

1166893856 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

1166893856 is a deficient number, since it is larger than the sum of its proper divisors (1131446188).

1166893856 is a wasteful number, since it uses less digits than its factorization.

1166893856 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16164 (or 16156 counting only the distinct ones).

The product of its digits is 1866240, while the sum is 53.

The square root of 1166893856 is about 34159.8281026120. The cubic root of 1166893856 is about 1052.7949289612.

The spelling of 1166893856 in words is "one billion, one hundred sixty-six million, eight hundred ninety-three thousand, eight hundred fifty-six".