5656217660127 has 24 divisors (see below), whose sum is σ = 8398582967424. Its totient is φ = 3665540983104.

The previous prime is 5656217660111. The next prime is 5656217660129. The reversal of 5656217660127 is 7210667126565.

It is a happy number.

5656217660127 is a `hidden beast` number, since 5 + 6 + 5 + 6 + 2 + 1 + 7 + 6 + 601 + 27 = 666.

It is not a de Polignac number, because 5656217660127 - 2⁴ = 5656217660111 is a prime.

It is a super-2 number, since 2×5656217660127² (a number of 26 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5656217660129) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 7406223 + ... + 8134160.

It is an arithmetic number, because the mean of its divisors is an integer number (349940956976).

Almost surely, 2^{5656217660127} is an apocalyptic number.

5656217660127 is a deficient number, since it is larger than the sum of its proper divisors (2742365307297).

5656217660127 is a wasteful number, since it uses less digits than its factorization.

5656217660127 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15541519 (or 15541516 counting only the distinct ones).

The product of its (nonzero) digits is 6350400, while the sum is 54.

The spelling of 5656217660127 in words is "five trillion, six hundred fifty-six billion, two hundred seventeen million, six hundred sixty thousand, one hundred twenty-seven".