2856655663 has 16 divisors (see below), whose sum is σ = 2918783296. Its totient is φ = 2795420160.

The previous prime is 2856655661. The next prime is 2856655667. The reversal of 2856655663 is 3665566582.

2856655663 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a cyclic number.

It is not a de Polignac number, because 2856655663 - 2¹ = 2856655661 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 2856655663.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2856655661) 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, 3896845 + ... + 3897577.

It is an arithmetic number, because the mean of its divisors is an integer number (182423956).

Almost surely, 2^2856655663 is an apocalyptic number.

2856655663 is a deficient number, since it is larger than the sum of its proper divisors (62127633).

2856655663 is a wasteful number, since it uses less digits than its factorization.

2856655663 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1234.

The product of its digits is 7776000, while the sum is 52.

The square root of 2856655663 is about 53447.6909042851. The cubic root of 2856655663 is about 1418.9027533381.

The spelling of 2856655663 in words is "two billion, eight hundred fifty-six million, six hundred fifty-five thousand, six hundred sixty-three".