1166663233 has 12 divisors (see below), whose sum is σ = 1242146560. Its totient is φ = 1095538752.

The previous prime is 1166663219. The next prime is 1166663249. The reversal of 1166663233 is 3323666611.

It is not a de Polignac number, because 1166663233 - 2¹⁷ = 1166532161 is a prime.

It is a super-2 number, since 2×1166663233² = 2722206198468024578, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1166663192 and 1166663201.

It is not an unprimeable number, because it can be changed into a prime (1166663263) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 129448 + ... + 138166.

Almost surely, 2^1166663233 is an apocalyptic number.

It is an amenable number.

1166663233 is a deficient number, since it is larger than the sum of its proper divisors (75483327).

1166663233 is an equidigital number, since it uses as much as digits as its factorization.

1166663233 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9216 (or 9199 counting only the distinct ones).

The product of its digits is 69984, while the sum is 37.

The square root of 1166663233 is about 34156.4522894284. The cubic root of 1166663233 is about 1052.7255668335.

The spelling of 1166663233 in words is "one billion, one hundred sixty-six million, six hundred sixty-three thousand, two hundred thirty-three".