1167166565663 has 16 divisors (see below), whose sum is σ = 1341160856640. Its totient is φ = 994990004736.

The previous prime is 1167166565639. The next prime is 1167166565707. The reversal of 1167166565663 is 3665656617611.

It is not a de Polignac number, because 1167166565663 - 2⁶ = 1167166565599 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1167166565603) 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, 3694295 + ... + 3997767.

It is an arithmetic number, because the mean of its divisors is an integer number (83822553540).

Almost surely, 2^{1167166565663} is an apocalyptic number.

1167166565663 is a deficient number, since it is larger than the sum of its proper divisors (173994290977).

1167166565663 is a wasteful number, since it uses less digits than its factorization.

1167166565663 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 306466.

The product of its digits is 24494400, while the sum is 59.

The spelling of 1167166565663 in words is "one trillion, one hundred sixty-seven billion, one hundred sixty-six million, five hundred sixty-five thousand, six hundred sixty-three".