56705627156641 has 2 divisors, whose sum is σ = 56705627156642. Its totient is φ = 56705627156640.

The previous prime is 56705627156627. The next prime is 56705627156743. The reversal of 56705627156641 is 14665172650765.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 56703851798416 + 1775358225 = 7530196^2 + 42135^2 .

It is a cyclic number.

It is not a de Polignac number, because 56705627156641 - 2¹⁷ = 56705627025569 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 56705627156641.

It is not a weakly prime, because it can be changed into another prime (56705627156621) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 28352813578320 + 28352813578321.

It is an arithmetic number, because the mean of its divisors is an integer number (28352813578321).

Almost surely, 2^{56705627156641} is an apocalyptic number.

It is an amenable number.

56705627156641 is a deficient number, since it is larger than the sum of its proper divisors (1).

56705627156641 is an equidigital number, since it uses as much as digits as its factorization.

56705627156641 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 63504000, while the sum is 61.

The spelling of 56705627156641 in words is "fifty-six trillion, seven hundred five billion, six hundred twenty-seven million, one hundred fifty-six thousand, six hundred forty-one".