561160061 has 16 divisors (see below), whose sum is σ = 701250048. Its totient is φ = 436254000.

The previous prime is 561160043. The next prime is 561160069. The reversal of 561160061 is 160061165.

It is not a de Polignac number, because 561160061 - 2⁶ = 561159997 is a prime.

It is a super-2 number, since 2×561160061² = 629801228123047442, which contains 22 as substring.

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 561160061.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (561160069) 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, 25886 + ... + 42336.

It is an arithmetic number, because the mean of its divisors is an integer number (43828128).

Almost surely, 2^561160061 is an apocalyptic number.

It is an amenable number.

561160061 is a deficient number, since it is larger than the sum of its proper divisors (140089987).

561160061 is a wasteful number, since it uses less digits than its factorization.

561160061 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16912.

The product of its (nonzero) digits is 1080, while the sum is 26.

The square root of 561160061 is about 23688.8172140358. The cubic root of 561160061 is about 824.8258272045.

The spelling of 561160061 in words is "five hundred sixty-one million, one hundred sixty thousand, sixty-one".