56664036071 has 2 divisors, whose sum is σ = 56664036072. Its totient is φ = 56664036070.

The previous prime is 56664036017. The next prime is 56664036133. The reversal of 56664036071 is 17063046665.

56664036071 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

Together with previous prime (56664036017) it forms an Ormiston pair, because they use the same digits, order apart.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 56664036071 - 2²⁶ = 56596927207 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (56664033071) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 28332018035 + 28332018036.

It is an arithmetic number, because the mean of its divisors is an integer number (28332018036).

Almost surely, 2^56664036071 is an apocalyptic number.

56664036071 is a deficient number, since it is larger than the sum of its proper divisors (1).

56664036071 is an equidigital number, since it uses as much as digits as its factorization.

56664036071 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 544320, while the sum is 44.

The spelling of 56664036071 in words is "fifty-six billion, six hundred sixty-four million, thirty-six thousand, seventy-one".