561332160 has 112 divisors (see below), whose sum is σ = 1980285600. Its totient is φ = 149686272.

The previous prime is 561332147. The next prime is 561332171. The reversal of 561332160 is 61233165.

561332160 is a `hidden beast` number, since 5 + 613 + 32 + 16 + 0 = 666.

561332160 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 23845 + ... + 41124.

Almost surely, 2^561332160 is an apocalyptic number.

It is an amenable number.

561332160 is an abundant number, since it is smaller than the sum of its proper divisors (1418953440).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

561332160 is a wasteful number, since it uses less digits than its factorization.

561332160 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 64995 (or 64979 counting only the distinct ones).

The product of its (nonzero) digits is 3240, while the sum is 27.

The square root of 561332160 is about 23692.4494301455. The cubic root of 561332160 is about 824.9101389728.

It can be divided in two parts, 5613 and 32160, that added together give a palindrome (37773).

The spelling of 561332160 in words is "five hundred sixty-one million, three hundred thirty-two thousand, one hundred sixty".