5655912918656 has 512 divisors, whose sum is σ = 15325901015040. Its totient is φ = 2007742464000.

The previous prime is 5655912918653. The next prime is 5655912918671. The reversal of 5655912918656 is 6568192195565.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (5655912918653) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 3541585250 + ... + 3541586846.

It is an arithmetic number, because the mean of its divisors is an integer number (29933400420).

Almost surely, 2^{5655912918656} is an apocalyptic number.

5655912918656 is a gapful number since it is divisible by the number (56) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 5655912918656, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (7662950507520).

5655912918656 is an abundant number, since it is smaller than the sum of its proper divisors (9669988096384).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

5655912918656 is a wasteful number, since it uses less digits than its factorization.

5655912918656 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1984 (or 1972 counting only the distinct ones).

The product of its digits is 174960000, while the sum is 68.

The spelling of 5655912918656 in words is "five trillion, six hundred fifty-five billion, nine hundred twelve million, nine hundred eighteen thousand, six hundred fifty-six".