655715161 has 4 divisors (see below), whose sum is σ = 658327824. Its totient is φ = 653102500.

The previous prime is 655715113. The next prime is 655715183. The reversal of 655715161 is 161517556.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 655715161 - 2⁹ = 655714649 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 655715161.

It is not an unprimeable number, because it can be changed into a prime (655715191) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1305955 + ... + 1306456.

It is an arithmetic number, because the mean of its divisors is an integer number (164581956).

Almost surely, 2^655715161 is an apocalyptic number.

It is an amenable number.

655715161 is a deficient number, since it is larger than the sum of its proper divisors (2612663).

655715161 is a wasteful number, since it uses less digits than its factorization.

655715161 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2612662.

The product of its digits is 31500, while the sum is 37.

The square root of 655715161 is about 25606.9357987245. The cubic root of 655715161 is about 868.7705190123.

The spelling of 655715161 in words is "six hundred fifty-five million, seven hundred fifteen thousand, one hundred sixty-one".