654265161 has 16 divisors (see below), whose sum is σ = 1057398720. Its totient is φ = 396524160.

The previous prime is 654265159. The next prime is 654265177. The reversal of 654265161 is 161562456.

654265161 is a `hidden beast` number, since 6 + 542 + 6 + 51 + 61 = 666.

It is not a de Polignac number, because 654265161 - 2¹ = 654265159 is a prime.

It is not an unprimeable number, because it can be changed into a prime (654265121) 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, 1101160 + ... + 1101753.

It is an arithmetic number, because the mean of its divisors is an integer number (66087420).

Almost surely, 2^654265161 is an apocalyptic number.

It is an amenable number.

654265161 is a deficient number, since it is larger than the sum of its proper divisors (403133559).

654265161 is a wasteful number, since it uses less digits than its factorization.

654265161 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2202933 (or 2202927 counting only the distinct ones).

The product of its digits is 43200, while the sum is 36.

The square root of 654265161 is about 25578.6074875080. The cubic root of 654265161 is about 868.1296681172.

The spelling of 654265161 in words is "six hundred fifty-four million, two hundred sixty-five thousand, one hundred sixty-one".