264163290081 has 16 divisors (see below), whose sum is σ = 354691814400. Its totient is φ = 174875334480.

The previous prime is 264163290011. The next prime is 264163290109. The reversal of 264163290081 is 180092361462.

It is not a de Polignac number, because 264163290081 - 2⁷ = 264163289953 is a prime.

It is a super-2 number, since 2×264163290081² (a number of 24 digits) contains 22 as substring.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (264163290011) 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, 139555 + ... + 740136.

It is an arithmetic number, because the mean of its divisors is an integer number (22168238400).

Almost surely, 2^264163290081 is an apocalyptic number.

It is an amenable number.

264163290081 is a deficient number, since it is larger than the sum of its proper divisors (90528524319).

264163290081 is a wasteful number, since it uses less digits than its factorization.

264163290081 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 880396.

The product of its (nonzero) digits is 124416, while the sum is 42.

The spelling of 264163290081 in words is "two hundred sixty-four billion, one hundred sixty-three million, two hundred ninety thousand, eighty-one".