654452056637 has 2 divisors, whose sum is σ = 654452056638. Its totient is φ = 654452056636.

The previous prime is 654452056631. The next prime is 654452056667. The reversal of 654452056637 is 736650254456.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 519767460601 + 134684596036 = 720949^2 + 366994^2 .

It is a cyclic number.

It is not a de Polignac number, because 654452056637 - 2²⁸ = 654183621181 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (654452056631) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 327226028318 + 327226028319.

It is an arithmetic number, because the mean of its divisors is an integer number (327226028319).

Almost surely, 2^654452056637 is an apocalyptic number.

It is an amenable number.

654452056637 is a deficient number, since it is larger than the sum of its proper divisors (1).

654452056637 is an equidigital number, since it uses as much as digits as its factorization.

654452056637 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 18144000, while the sum is 53.

The spelling of 654452056637 in words is "six hundred fifty-four billion, four hundred fifty-two million, fifty-six thousand, six hundred thirty-seven".