6560155515656 has 16 divisors (see below), whose sum is σ = 12328698738300. Its totient is φ = 3272502518784.

The previous prime is 6560155515653. The next prime is 6560155515737. The reversal of 6560155515656 is 6565155510656.

It can be written as a sum of positive squares in 2 ways, for example, as 6447709306756 + 112446208900 = 2539234^2 + 335330^2 .

It is a super-2 number, since 2×6560155515656² (a number of 26 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (6560155515653) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 946901201 + ... + 946908128.

Almost surely, 2^{6560155515656} is an apocalyptic number.

It is an amenable number.

6560155515656 is a deficient number, since it is larger than the sum of its proper divisors (5768543222644).

6560155515656 is a wasteful number, since it uses less digits than its factorization.

6560155515656 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1893809768 (or 1893809764 counting only the distinct ones).

The product of its (nonzero) digits is 20250000, while the sum is 56.

The spelling of 6560155515656 in words is "six trillion, five hundred sixty billion, one hundred fifty-five million, five hundred fifteen thousand, six hundred fifty-six".