641216100299 has 2 divisors, whose sum is σ = 641216100300. Its totient is φ = 641216100298.

The previous prime is 641216100293. The next prime is 641216100359. The reversal of 641216100299 is 992001612146.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-641216100299 is a prime.

It is a super-2 number, since 2×641216100299² (a number of 24 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (641216100293) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 320608050149 + 320608050150.

It is an arithmetic number, because the mean of its divisors is an integer number (320608050150).

Almost surely, 2^641216100299 is an apocalyptic number.

641216100299 is a deficient number, since it is larger than the sum of its proper divisors (1).

641216100299 is an equidigital number, since it uses as much as digits as its factorization.

641216100299 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 46656, while the sum is 41.

The spelling of 641216100299 in words is "six hundred forty-one billion, two hundred sixteen million, one hundred thousand, two hundred ninety-nine".