2201556456 has 64 divisors (see below), whose sum is σ = 6671390400. Its totient is φ = 667137600.

The previous prime is 2201556451. The next prime is 2201556473. The reversal of 2201556456 is 6546551022.

2201556456 is a `hidden beast` number, since 2 + 2 + 0 + 1 + 5 + 5 + 645 + 6 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a self number, because there is not a number n which added to its sum of digits gives 2201556456.

It is not an unprimeable number, because it can be changed into a prime (2201556451) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 460915 + ... + 465666.

It is an arithmetic number, because the mean of its divisors is an integer number (104240475).

Almost surely, 2^2201556456 is an apocalyptic number.

It is an amenable number.

2201556456 is an abundant number, since it is smaller than the sum of its proper divisors (4469833944).

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

2201556456 is a wasteful number, since it uses less digits than its factorization.

2201556456 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 926607 (or 926597 counting only the distinct ones).

The product of its (nonzero) digits is 72000, while the sum is 36.

The square root of 2201556456 is about 46920.7465413755. The cubic root of 2201556456 is about 1300.8980886940.

The spelling of 2201556456 in words is "two billion, two hundred one million, five hundred fifty-six thousand, four hundred fifty-six".