5645506877656 has 16 divisors (see below), whose sum is σ = 10585714812840. Its totient is φ = 2822649594240.

The previous prime is 5645506877629. The next prime is 5645506877657. The reversal of 5645506877656 is 6567786055465.

It is a super-2 number, since 2×5645506877656² (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 (5645506877657) 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, 12749281 + ... + 13184656.

Almost surely, 2^{5645506877656} is an apocalyptic number.

It is an amenable number.

5645506877656 is a deficient number, since it is larger than the sum of its proper divisors (4940207935184).

5645506877656 is a wasteful number, since it uses less digits than its factorization.

5645506877656 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25961154 (or 25961150 counting only the distinct ones).

The product of its (nonzero) digits is 1270080000, while the sum is 70.

The spelling of 5645506877656 in words is "five trillion, six hundred forty-five billion, five hundred six million, eight hundred seventy-seven thousand, six hundred fifty-six".