206650764422653 has 2 divisors, whose sum is σ = 206650764422654. Its totient is φ = 206650764422652.

The previous prime is 206650764422621. The next prime is 206650764422747. The reversal of 206650764422653 is 356224467056602.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 137608923646489 + 69041840776164 = 11730683^2 + 8309142^2 .

It is a cyclic number.

It is not a de Polignac number, because 206650764422653 - 2⁵ = 206650764422621 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (206650764426653) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 103325382211326 + 103325382211327.

It is an arithmetic number, because the mean of its divisors is an integer number (103325382211327).

Almost surely, 2^{206650764422653} is an apocalyptic number.

It is an amenable number.

206650764422653 is a deficient number, since it is larger than the sum of its proper divisors (1).

206650764422653 is an equidigital number, since it uses as much as digits as its factorization.

206650764422653 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 87091200, while the sum is 58.

The spelling of 206650764422653 in words is "two hundred six trillion, six hundred fifty billion, seven hundred sixty-four million, four hundred twenty-two thousand, six hundred fifty-three".