56216640531651 has 16 divisors (see below), whose sum is σ = 78602388281760. Its totient is φ = 35689733049600.

The previous prime is 56216640531553. The next prime is 56216640531673. The reversal of 56216640531651 is 15613504661265.

56216640531651 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 56216640531651 - 2²² = 56216636337347 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 56216640531594 and 56216640531603.

It is not an unprimeable number, because it can be changed into a prime (56216640539651) 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, 4425803800 + ... + 4425816501.

It is an arithmetic number, because the mean of its divisors is an integer number (4912649267610).

Almost surely, 2^{56216640531651} is an apocalyptic number.

56216640531651 is a deficient number, since it is larger than the sum of its proper divisors (22385747750109).

56216640531651 is a wasteful number, since it uses less digits than its factorization.

56216640531651 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8851620406.

The product of its (nonzero) digits is 3888000, while the sum is 51.

The spelling of 56216640531651 in words is "fifty-six trillion, two hundred sixteen billion, six hundred forty million, five hundred thirty-one thousand, six hundred fifty-one".