1166996231 has 2 divisors, whose sum is σ = 1166996232. Its totient is φ = 1166996230.

The previous prime is 1166996219. The next prime is 1166996251. The reversal of 1166996231 is 1326996611.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1166996231 - 2²⁶ = 1099887367 is a prime.

It is a super-2 number, since 2×1166996231² = 2723760406336410722, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1166996251) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 583498115 + 583498116.

It is an arithmetic number, because the mean of its divisors is an integer number (583498116).

Almost surely, 2^1166996231 is an apocalyptic number.

1166996231 is a deficient number, since it is larger than the sum of its proper divisors (1).

1166996231 is an equidigital number, since it uses as much as digits as its factorization.

1166996231 is an evil number, because the sum of its binary digits is even.

The product of its digits is 104976, while the sum is 44.

The square root of 1166996231 is about 34161.3265404024. The cubic root of 1166996231 is about 1052.8257163170.

The spelling of 1166996231 in words is "one billion, one hundred sixty-six million, nine hundred ninety-six thousand, two hundred thirty-one".