56647692277680 has 320 divisors, whose sum is σ = 203364583833600. Its totient is φ = 12776001039360.

The previous prime is 56647692277669. The next prime is 56647692277769. The reversal of 56647692277680 is 8677229674665.

It is a super-2 number, since 2×56647692277680² (a number of 28 digits) contains 22 as substring.

It is a Smith number, since the sum of its digits (75) coincides with the sum of the digits of its prime factors.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 209429725 + ... + 209700035.

It is an arithmetic number, because the mean of its divisors is an integer number (635514324480).

Almost surely, 2^{56647692277680} is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 56647692277680, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (101682291916800).

56647692277680 is an abundant number, since it is smaller than the sum of its proper divisors (146716891555920).

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

56647692277680 is a wasteful number, since it uses less digits than its factorization.

56647692277680 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 271992 (or 271986 counting only the distinct ones).

The product of its (nonzero) digits is 2560481280, while the sum is 75.

The spelling of 56647692277680 in words is "fifty-six trillion, six hundred forty-seven billion, six hundred ninety-two million, two hundred seventy-seven thousand, six hundred eighty".