2256398605404 has 72 divisors (see below), whose sum is σ = 5863636680720. Its totient is φ = 731079240192.

The previous prime is 2256398605387. The next prime is 2256398605423. The reversal of 2256398605404 is 4045068936522.

2256398605404 is a `hidden beast` number, since 2 + 2 + 5 + 6 + 3 + 98 + 6 + 0 + 540 + 4 = 666.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 504547 + ... + 2183429.

Almost surely, 2^{2256398605404} 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 2256398605404, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2931818340360).

2256398605404 is an abundant number, since it is smaller than the sum of its proper divisors (3607238075316).

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

2256398605404 is a wasteful number, since it uses less digits than its factorization.

2256398605404 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1679939 (or 1679934 counting only the distinct ones).

The product of its (nonzero) digits is 12441600, while the sum is 54.

The spelling of 2256398605404 in words is "two trillion, two hundred fifty-six billion, three hundred ninety-eight million, six hundred five thousand, four hundred four".