56607427600091 has 2 divisors, whose sum is σ = 56607427600092. Its totient is φ = 56607427600090.

The previous prime is 56607427600081. The next prime is 56607427600109. The reversal of 56607427600091 is 19000672470665.

Together with next prime (56607427600109) 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 56607427600091 - 2³⁰ = 56606353858267 is a prime.

It is not a weakly prime, because it can be changed into another prime (56607427600051) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 28303713800045 + 28303713800046.

It is an arithmetic number, because the mean of its divisors is an integer number (28303713800046).

Almost surely, 2^{56607427600091} is an apocalyptic number.

56607427600091 is a deficient number, since it is larger than the sum of its proper divisors (1).

56607427600091 is an equidigital number, since it uses as much as digits as its factorization.

56607427600091 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3810240, while the sum is 53.

The spelling of 56607427600091 in words is "fifty-six trillion, six hundred seven billion, four hundred twenty-seven million, six hundred thousand, ninety-one".