56356652116421 has 16 divisors (see below), whose sum is σ = 56615525130240. Its totient is φ = 56098470890880.

The previous prime is 56356652116409. The next prime is 56356652116451. The reversal of 56356652116421 is 12461125665365.

56356652116421 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 56356652116421 - 2⁶ = 56356652116357 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (56356652116451) 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 15 ways as a sum of consecutive naturals, for example, 397453625 + ... + 397595393.

It is an arithmetic number, because the mean of its divisors is an integer number (3538470320640).

Almost surely, 2^{56356652116421} is an apocalyptic number.

It is an amenable number.

56356652116421 is a deficient number, since it is larger than the sum of its proper divisors (258873013819).

56356652116421 is a wasteful number, since it uses less digits than its factorization.

56356652116421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 144196.

The product of its digits is 7776000, while the sum is 53.

The spelling of 56356652116421 in words is "fifty-six trillion, three hundred fifty-six billion, six hundred fifty-two million, one hundred sixteen thousand, four hundred twenty-one".