1167166565665 has 8 divisors (see below), whose sum is σ = 1403452427328. Its totient is φ = 931831553520.

The previous prime is 1167166565639. The next prime is 1167166565707. The reversal of 1167166565665 is 5665656617611.

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

It is not a de Polignac number, because 1167166565665 - 2⁵ = 1167166565633 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 237709677 + ... + 237714586.

It is an arithmetic number, because the mean of its divisors is an integer number (175431553416).

Almost surely, 2^{1167166565665} is an apocalyptic number.

It is an amenable number.

1167166565665 is a deficient number, since it is larger than the sum of its proper divisors (236285861663).

1167166565665 is an equidigital number, since it uses as much as digits as its factorization.

1167166565665 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 475424759.

The product of its digits is 40824000, while the sum is 61.

The spelling of 1167166565665 in words is "one trillion, one hundred sixty-seven billion, one hundred sixty-six million, five hundred sixty-five thousand, six hundred sixty-five".