2664586161 has 6 divisors (see below), whose sum is σ = 3848846690. Its totient is φ = 1776390768.

The previous prime is 2664586147. The next prime is 2664586189. The reversal of 2664586161 is 1616854662.

2664586161 is a `hidden beast` number, since 2 + 6 + 6 + 4 + 586 + 1 + 61 = 666.

It can be written as a sum of positive squares in only one way, i.e., 1694886561 + 969699600 = 41169^2 + 31140^2 .

It is not a de Polignac number, because 2664586161 - 2⁶ = 2664586097 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (2664586061) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 148032556 + ... + 148032573.

Almost surely, 2^2664586161 is an apocalyptic number.

It is an amenable number.

2664586161 is a deficient number, since it is larger than the sum of its proper divisors (1184260529).

2664586161 is a wasteful number, since it uses less digits than its factorization.

2664586161 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 296065135 (or 296065132 counting only the distinct ones).

The product of its digits is 414720, while the sum is 45.

The square root of 2664586161 is about 51619.6296092872. The cubic root of 2664586161 is about 1386.3618193575.

The spelling of 2664586161 in words is "two billion, six hundred sixty-four million, five hundred eighty-six thousand, one hundred sixty-one".