646105264711 has 2 divisors, whose sum is σ = 646105264712. Its totient is φ = 646105264710.

The previous prime is 646105264627. The next prime is 646105264741. The reversal of 646105264711 is 117462501646.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 646105264711 - 2¹⁹ = 646104740423 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (646105264741) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 323052632355 + 323052632356.

It is an arithmetic number, because the mean of its divisors is an integer number (323052632356).

Almost surely, 2^646105264711 is an apocalyptic number.

646105264711 is a deficient number, since it is larger than the sum of its proper divisors (1).

646105264711 is an equidigital number, since it uses as much as digits as its factorization.

646105264711 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 241920, while the sum is 43.

The spelling of 646105264711 in words is "six hundred forty-six billion, one hundred five million, two hundred sixty-four thousand, seven hundred eleven".