201715448256 has 560 divisors, whose sum is σ = 705420536832. Its totient is φ = 55800576000.

The previous prime is 201715448237. The next prime is 201715448261. The reversal of 201715448256 is 652844517102.

201715448256 is a `hidden beast` number, since 2 + 0 + 1 + 71 + 54 + 482 + 56 = 666.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 79 ways as a sum of consecutive naturals, for example, 172258551 + ... + 172259721.

Almost surely, 2^201715448256 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 201715448256, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (352710268416).

201715448256 is an abundant number, since it is smaller than the sum of its proper divisors (503705088576).

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

201715448256 is a wasteful number, since it uses less digits than its factorization.

201715448256 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1350 (or 1331 counting only the distinct ones).

The product of its (nonzero) digits is 537600, while the sum is 45.

The spelling of 201715448256 in words is "two hundred one billion, seven hundred fifteen million, four hundred forty-eight thousand, two hundred fifty-six".