556717161 has 64 divisors (see below), whose sum is σ = 1008322560. Its totient is φ = 263831040.

The previous prime is 556717159. The next prime is 556717169. The reversal of 556717161 is 161717655.

It is not a de Polignac number, because 556717161 - 2¹ = 556717159 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is not an unprimeable number, because it can be changed into a prime (556717169) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 266226 + ... + 268308.

It is an arithmetic number, because the mean of its divisors is an integer number (15755040).

Almost surely, 2^556717161 is an apocalyptic number.

It is an amenable number.

556717161 is a deficient number, since it is larger than the sum of its proper divisors (451605399).

556717161 is a wasteful number, since it uses less digits than its factorization.

556717161 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2206.

The product of its digits is 44100, while the sum is 39.

The square root of 556717161 is about 23594.8545450062. The cubic root of 556717161 is about 822.6432456540.

It can be divided in two parts, 556 and 717161, that added together give a palindrome (717717).

The spelling of 556717161 in words is "five hundred fifty-six million, seven hundred seventeen thousand, one hundred sixty-one".