1166797415983 has 4 divisors (see below), whose sum is σ = 1167690146760. Its totient is φ = 1165904685208.

The previous prime is 1166797415939. The next prime is 1166797416011. The reversal of 1166797415983 is 3895147976611.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 1166797415983 - 2²⁹ = 1166260545071 is a prime.

It is a super-2 number, since 2×1166797415983² (a number of 25 digits) contains 22 as substring.

It is a Smith number, since the sum of its digits (67) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1166797455983) 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, 446363428 + ... + 446366041.

It is an arithmetic number, because the mean of its divisors is an integer number (291922536690).

Almost surely, 2^{1166797415983} is an apocalyptic number.

1166797415983 is a deficient number, since it is larger than the sum of its proper divisors (892730777).

1166797415983 is an equidigital number, since it uses as much as digits as its factorization.

1166797415983 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 892730776.

The product of its digits is 68584320, while the sum is 67.

The spelling of 1166797415983 in words is "one trillion, one hundred sixty-six billion, seven hundred ninety-seven million, four hundred fifteen thousand, nine hundred eighty-three".