2556075205170 has 48 divisors (see below), whose sum is σ = 7036724686680. Its totient is φ = 641524756992.

The previous prime is 2556075205157. The next prime is 2556075205181. The reversal of 2556075205170 is 715025706552.

2556075205170 is a `hidden beast` number, since 2 + 5 + 5 + 6 + 0 + 7 + 520 + 51 + 70 = 666.

It can be written as a sum of positive squares in 4 ways, for example, as 2258224502121 + 297850703049 = 1502739^2 + 545757^2 .

It is a Harshad number since it is a multiple of its sum of digits (45).

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, 835317165 + ... + 835320224.

Almost surely, 2^{2556075205170} is an apocalyptic number.

2556075205170 is an abundant number, since it is smaller than the sum of its proper divisors (4480649481510).

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

2556075205170 is a wasteful number, since it uses less digits than its factorization.

2556075205170 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1670637419 (or 1670637416 counting only the distinct ones).

The product of its (nonzero) digits is 735000, while the sum is 45.

The spelling of 2556075205170 in words is "two trillion, five hundred fifty-six billion, seventy-five million, two hundred five thousand, one hundred seventy".