655903294201 has 2 divisors, whose sum is σ = 655903294202. Its totient is φ = 655903294200.

The previous prime is 655903294199. The next prime is 655903294219. The reversal of 655903294201 is 102492309556.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 510989077225 + 144914216976 = 714835^2 + 380676^2 .

It is a cyclic number.

It is not a de Polignac number, because 655903294201 - 2¹ = 655903294199 is a prime.

Together with 655903294199, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (655903294231) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 327951647100 + 327951647101.

It is an arithmetic number, because the mean of its divisors is an integer number (327951647101).

Almost surely, 2^655903294201 is an apocalyptic number.

It is an amenable number.

655903294201 is a deficient number, since it is larger than the sum of its proper divisors (1).

655903294201 is an equidigital number, since it uses as much as digits as its factorization.

655903294201 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 583200, while the sum is 46.

The spelling of 655903294201 in words is "six hundred fifty-five billion, nine hundred three million, two hundred ninety-four thousand, two hundred one".