2556205361703 has 24 divisors (see below), whose sum is σ = 4219881744000. Its totient is φ = 1460649260304.

The previous prime is 2556205361701. The next prime is 2556205361707. The reversal of 2556205361703 is 3071635026552.

2556205361703 is a `hidden beast` number, since 2 + 5 + 5 + 6 + 20 + 5 + 3 + 617 + 0 + 3 = 666.

2556205361703 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 2556205361703 - 2¹ = 2556205361701 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2556205361701) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1883128 + ... + 2942546.

It is an arithmetic number, because the mean of its divisors is an integer number (175828406000).

Almost surely, 2^{2556205361703} is an apocalyptic number.

2556205361703 is a deficient number, since it is larger than the sum of its proper divisors (1663676382297).

2556205361703 is a wasteful number, since it uses less digits than its factorization.

2556205361703 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1097731 (or 1097728 counting only the distinct ones).

The product of its (nonzero) digits is 1134000, while the sum is 45.

The spelling of 2556205361703 in words is "two trillion, five hundred fifty-six billion, two hundred five million, three hundred sixty-one thousand, seven hundred three".