646550096611 has 2 divisors, whose sum is σ = 646550096612. Its totient is φ = 646550096610.

The previous prime is 646550096579. The next prime is 646550096629. The reversal of 646550096611 is 116690055646.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 646550096611 - 2⁵ = 646550096579 is a prime.

It is not a weakly prime, because it can be changed into another prime (646550090611) 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, 323275048305 + 323275048306.

It is an arithmetic number, because the mean of its divisors is an integer number (323275048306).

Almost surely, 2^646550096611 is an apocalyptic number.

646550096611 is a deficient number, since it is larger than the sum of its proper divisors (1).

646550096611 is an equidigital number, since it uses as much as digits as its factorization.

646550096611 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1166400, while the sum is 49.

The spelling of 646550096611 in words is "six hundred forty-six billion, five hundred fifty million, ninety-six thousand, six hundred eleven".