7616560561 has 16 divisors (see below), whose sum is σ = 8056258560. Its totient is φ = 7186093200.

The previous prime is 7616560547. The next prime is 7616560597. The reversal of 7616560561 is 1650656167.

It is a cyclic number.

It is not a de Polignac number, because 7616560561 - 2¹³ = 7616552369 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (7616560361) 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, 3238536 + ... + 3240886.

It is an arithmetic number, because the mean of its divisors is an integer number (503516160).

Almost surely, 2^7616560561 is an apocalyptic number.

It is an amenable number.

7616560561 is a deficient number, since it is larger than the sum of its proper divisors (439697999).

7616560561 is a wasteful number, since it uses less digits than its factorization.

7616560561 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4236.

The product of its (nonzero) digits is 226800, while the sum is 43.

The square root of 7616560561 is about 87272.9085169046. The cubic root of 7616560561 is about 1967.5221633071.

The spelling of 7616560561 in words is "seven billion, six hundred sixteen million, five hundred sixty thousand, five hundred sixty-one".