47720365056 has 528 divisors, whose sum is σ = 175013587200. Its totient is φ = 12576964608.

The previous prime is 47720365001. The next prime is 47720365061. The reversal of 47720365056 is 65056302774.

47720365056 is a `hidden beast` number, since 47 + 72 + 0 + 36 + 505 + 6 = 666.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 32706855 + ... + 32708313.

Almost surely, 2^47720365056 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 47720365056, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (87506793600).

47720365056 is an abundant number, since it is smaller than the sum of its proper divisors (127293222144).

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

47720365056 is a wasteful number, since it uses less digits than its factorization.

47720365056 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1521 (or 1484 counting only the distinct ones).

The product of its (nonzero) digits is 1058400, while the sum is 45.

The spelling of 47720365056 in words is "forty-seven billion, seven hundred twenty million, three hundred sixty-five thousand, fifty-six".