1166681138883 has 16 divisors (see below), whose sum is σ = 1690603585440. Its totient is φ = 711370854144.

The previous prime is 1166681138839. The next prime is 1166681138893. The reversal of 1166681138883 is 3888311866611.

It is a happy number.

It is not a de Polignac number, because 1166681138883 - 2²⁰ = 1166680090307 is a prime.

It is a super-2 number, since 2×1166681138883² (a number of 25 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1166681138893) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 137220066 + ... + 137228567.

It is an arithmetic number, because the mean of its divisors is an integer number (105662724090).

Almost surely, 2^{1166681138883} is an apocalyptic number.

1166681138883 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

1166681138883 is a deficient number, since it is larger than the sum of its proper divisors (523922446557).

1166681138883 is a wasteful number, since it uses less digits than its factorization.

1166681138883 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 274448758.

The product of its digits is 7962624, while the sum is 60.

The spelling of 1166681138883 in words is "one trillion, one hundred sixty-six billion, six hundred eighty-one million, one hundred thirty-eight thousand, eight hundred eighty-three".