559331661 has 16 divisors (see below), whose sum is σ = 852660224. Its totient is φ = 319488624.

The previous prime is 559331639. The next prime is 559331699. The reversal of 559331661 is 166133955.

559331661 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 559331661 - 2⁵ = 559331629 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (559331261) 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, 76800 + ... + 83766.

It is an arithmetic number, because the mean of its divisors is an integer number (53291264).

Almost surely, 2^559331661 is an apocalyptic number.

It is an amenable number.

559331661 is a deficient number, since it is larger than the sum of its proper divisors (293328563).

559331661 is a wasteful number, since it uses less digits than its factorization.

559331661 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10800.

The product of its digits is 72900, while the sum is 39.

The square root of 559331661 is about 23650.1936778539. The cubic root of 559331661 is about 823.9290227966.

The spelling of 559331661 in words is "five hundred fifty-nine million, three hundred thirty-one thousand, six hundred sixty-one".