2056766543553 has 8 divisors (see below), whose sum is σ = 2742363420768. Its totient is φ = 1371173681024.

The previous prime is 2056766543497. The next prime is 2056766543561. The reversal of 2056766543553 is 3553456676502.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 2056766543553 - 2²⁸ = 2056498108097 is a prime.

It is a super-2 number, since 2×2056766543553² (a number of 25 digits) contains 22 as substring.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 2056766543493 and 2056766543502.

It is not an unprimeable number, because it can be changed into a prime (2056766543353) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 523825 + ... + 2094737.

It is an arithmetic number, because the mean of its divisors is an integer number (342795427596).

Almost surely, 2^{2056766543553} is an apocalyptic number.

It is an amenable number.

2056766543553 is a deficient number, since it is larger than the sum of its proper divisors (685596877215).

2056766543553 is a wasteful number, since it uses less digits than its factorization.

2056766543553 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2007343.

The product of its (nonzero) digits is 68040000, while the sum is 57.

The spelling of 2056766543553 in words is "two trillion, fifty-six billion, seven hundred sixty-six million, five hundred forty-three thousand, five hundred fifty-three".