2056660001055 has 48 divisors (see below), whose sum is σ = 3889188534816. Its totient is φ = 997109141760.

The previous prime is 2056660001023. The next prime is 2056660001063. The reversal of 2056660001055 is 5501000666502.

It is a happy number.

It is not a de Polignac number, because 2056660001055 - 2⁵ = 2056660001023 is a prime.

It is a super-2 number, since 2×2056660001055² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 8861269 + ... + 9090401.

It is an arithmetic number, because the mean of its divisors is an integer number (81024761142).

Almost surely, 2^{2056660001055} is an apocalyptic number.

2056660001055 is a deficient number, since it is larger than the sum of its proper divisors (1832528533761).

2056660001055 is a wasteful number, since it uses less digits than its factorization.

2056660001055 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 247288 (or 247285 counting only the distinct ones).

The product of its (nonzero) digits is 54000, while the sum is 36.

Adding to 2056660001055 its reverse (5501000666502), we get a palindrome (7557660667557).

The spelling of 2056660001055 in words is "two trillion, fifty-six billion, six hundred sixty million, one thousand, fifty-five".