655606566133 has 2 divisors, whose sum is σ = 655606566134. Its totient is φ = 655606566132.

The previous prime is 655606566127. The next prime is 655606566169. The reversal of 655606566133 is 331665606556.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 420969987684 + 234636578449 = 648822^2 + 484393^2 .

It is a cyclic number.

It is not a de Polignac number, because 655606566133 - 2³⁷ = 518167612661 is a prime.

It is a super-3 number, since 3×655606566133³ (a number of 36 digits) contains 333 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (655606566103) 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, 327803283066 + 327803283067.

It is an arithmetic number, because the mean of its divisors is an integer number (327803283067).

Almost surely, 2^655606566133 is an apocalyptic number.

It is an amenable number.

655606566133 is a deficient number, since it is larger than the sum of its proper divisors (1).

655606566133 is an equidigital number, since it uses as much as digits as its factorization.

655606566133 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 8748000, while the sum is 52.

The spelling of 655606566133 in words is "six hundred fifty-five billion, six hundred six million, five hundred sixty-six thousand, one hundred thirty-three".