2056636561836 has 96 divisors (see below), whose sum is σ = 4964022556416. Its totient is φ = 662306400000.

The previous prime is 2056636561823. The next prime is 2056636561871. The reversal of 2056636561836 is 6381656366502.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 53191111 + ... + 53229761.

It is an arithmetic number, because the mean of its divisors is an integer number (51708568296).

Almost surely, 2^{2056636561836} is an apocalyptic number.

It is an amenable number.

2056636561836 is an abundant number, since it is smaller than the sum of its proper divisors (2907385994580).

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

2056636561836 is a wasteful number, since it uses less digits than its factorization.

2056636561836 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 39823 (or 39821 counting only the distinct ones).

The product of its (nonzero) digits is 27993600, while the sum is 57.

The spelling of 2056636561836 in words is "two trillion, fifty-six billion, six hundred thirty-six million, five hundred sixty-one thousand, eight hundred thirty-six".