646050123006667 has 2 divisors, whose sum is σ = 646050123006668. Its totient is φ = 646050123006666.

The previous prime is 646050123006649. The next prime is 646050123006671. The reversal of 646050123006667 is 766600321050646.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 646050123006667 - 2²³ = 646050114618059 is a prime.

It is a super-2 number, since 2×646050123006667² (a number of 30 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (646050123006647) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 323025061503333 + 323025061503334.

It is an arithmetic number, because the mean of its divisors is an integer number (323025061503334).

Almost surely, 2^{646050123006667} is an apocalyptic number.

646050123006667 is a deficient number, since it is larger than the sum of its proper divisors (1).

646050123006667 is an equidigital number, since it uses as much as digits as its factorization.

646050123006667 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 6531840, while the sum is 52.

The spelling of 646050123006667 in words is "six hundred forty-six trillion, fifty billion, one hundred twenty-three million, six thousand, six hundred sixty-seven".