660000161065 has 32 divisors (see below), whose sum is σ = 927534744576. Its totient is φ = 441406203840.

The previous prime is 660000161053. The next prime is 660000161069. The reversal of 660000161065 is 560161000066.

660000161065 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 660000161065 - 2²⁵ = 659966606633 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (660000161069) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 722634 + ... + 1357276.

It is an arithmetic number, because the mean of its divisors is an integer number (28985460768).

Almost surely, 2^660000161065 is an apocalyptic number.

It is an amenable number.

660000161065 is a deficient number, since it is larger than the sum of its proper divisors (267534583511).

660000161065 is a wasteful number, since it uses less digits than its factorization.

660000161065 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 635389.

The product of its (nonzero) digits is 6480, while the sum is 31.

The spelling of 660000161065 in words is "six hundred sixty billion, one hundred sixty-one thousand, sixty-five".