1163312566 has 8 divisors (see below), whose sum is σ = 1879197264. Its totient is φ = 536913480.

The previous prime is 1163312551. The next prime is 1163312573. The reversal of 1163312566 is 6652133611.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×1163312566² = 2706592252427008712, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 22371370 + ... + 22371421.

It is an arithmetic number, because the mean of its divisors is an integer number (234899658).

Almost surely, 2^1163312566 is an apocalyptic number.

1163312566 is a deficient number, since it is larger than the sum of its proper divisors (715884698).

1163312566 is a wasteful number, since it uses less digits than its factorization.

1163312566 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 44742806.

The product of its digits is 19440, while the sum is 34.

The square root of 1163312566 is about 34107.3682068846. The cubic root of 1163312566 is about 1051.7167881334.

The spelling of 1163312566 in words is "one billion, one hundred sixty-three million, three hundred twelve thousand, five hundred sixty-six".