5656361773656 has 64 divisors (see below), whose sum is σ = 15612301998720. Its totient is φ = 1693397822720.

The previous prime is 5656361773649. The next prime is 5656361773663. The reversal of 5656361773656 is 6563771636565.

It is an interprime number because it is at equal distance from previous prime (5656361773649) and next prime (5656361773663).

It is a Harshad number since it is a multiple of its sum of digits (66).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 129048045 + ... + 129091868.

It is an arithmetic number, because the mean of its divisors is an integer number (243942218730).

Almost surely, 2^{5656361773656} is an apocalyptic number.

It is an amenable number.

5656361773656 is an abundant number, since it is smaller than the sum of its proper divisors (9955940225064).

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

5656361773656 is a wasteful number, since it uses less digits than its factorization.

5656361773656 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 258140016 (or 258140012 counting only the distinct ones).

The product of its digits is 428652000, while the sum is 66.

The spelling of 5656361773656 in words is "five trillion, six hundred fifty-six billion, three hundred sixty-one million, seven hundred seventy-three thousand, six hundred fifty-six".