2056436866 has 24 divisors (see below), whose sum is σ = 3392944380. Its totient is φ = 934090080.

The previous prime is 2056436849. The next prime is 2056436869. The reversal of 2056436866 is 6686346502.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 1803785841 + 252651025 = 42471^2 + 15895^2 .

It is a hoax number, since the sum of its digits (46) coincides with the sum of the digits of its distinct prime factors.

It is not an unprimeable number, because it can be changed into a prime (2056436869) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 576360 + ... + 579916.

Almost surely, 2^2056436866 is an apocalyptic number.

2056436866 is a deficient number, since it is larger than the sum of its proper divisors (1336507514).

2056436866 is a wasteful number, since it uses less digits than its factorization.

2056436866 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5970 (or 5959 counting only the distinct ones).

The product of its (nonzero) digits is 1244160, while the sum is 46.

The square root of 2056436866 is about 45347.9532724466. The cubic root of 2056436866 is about 1271.6622922594.

The spelling of 2056436866 in words is "two billion, fifty-six million, four hundred thirty-six thousand, eight hundred sixty-six".