264610161 has 6 divisors (see below), whose sum is σ = 382214690. Its totient is φ = 176406768.

The previous prime is 264610153. The next prime is 264610201. The reversal of 264610161 is 161016462.

264610161 is a `hidden beast` number, since 2 + 646 + 1 + 0 + 16 + 1 = 666.

It can be written as a sum of positive squares in only one way, i.e., 167961600 + 96648561 = 12960^2 + 9831^2 .

It is not a de Polignac number, because 264610161 - 2³ = 264610153 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (264610121) 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, 14700556 + ... + 14700573.

Almost surely, 2^264610161 is an apocalyptic number.

It is an amenable number.

264610161 is a deficient number, since it is larger than the sum of its proper divisors (117604529).

264610161 is a wasteful number, since it uses less digits than its factorization.

264610161 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29401135 (or 29401132 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 27.

The square root of 264610161 is about 16266.8423795155. The cubic root of 264610161 is about 642.0007060289. Note that the first 3 decimals are identical.

The spelling of 264610161 in words is "two hundred sixty-four million, six hundred ten thousand, one hundred sixty-one".