856604548801 has 2 divisors, whose sum is σ = 856604548802. Its totient is φ = 856604548800.

The previous prime is 856604548783. The next prime is 856604548819. The reversal of 856604548801 is 108845406658.

856604548801 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a balanced prime because it is at equal distance from previous prime (856604548783) and next prime (856604548819).

It can be written as a sum of positive squares in only one way, i.e., 785102323600 + 71502225201 = 886060^2 + 267399^2 .

It is a cyclic number.

It is not a de Polignac number, because 856604548801 - 2¹⁷ = 856604417729 is a prime.

It is not a weakly prime, because it can be changed into another prime (856604548901) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 428302274400 + 428302274401.

It is an arithmetic number, because the mean of its divisors is an integer number (428302274401).

Almost surely, 2^856604548801 is an apocalyptic number.

It is an amenable number.

856604548801 is a deficient number, since it is larger than the sum of its proper divisors (1).

856604548801 is an equidigital number, since it uses as much as digits as its factorization.

856604548801 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 7372800, while the sum is 55.

The spelling of 856604548801 in words is "eight hundred fifty-six billion, six hundred four million, five hundred forty-eight thousand, eight hundred one".