65213667947999 has 2 divisors, whose sum is σ = 65213667948000. Its totient is φ = 65213667947998.

The previous prime is 65213667947993. The next prime is 65213667948019. The reversal of 65213667947999 is 99974976631256.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-65213667947999 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (65213667947993) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 32606833973999 + 32606833974000.

It is an arithmetic number, because the mean of its divisors is an integer number (32606833974000).

Almost surely, 2^{65213667947999} is an apocalyptic number.

65213667947999 is a deficient number, since it is larger than the sum of its proper divisors (1).

65213667947999 is an equidigital number, since it uses as much as digits as its factorization.

65213667947999 is an evil number, because the sum of its binary digits is even.

The product of its digits is 8332994880, while the sum is 83.

The spelling of 65213667947999 in words is "sixty-five trillion, two hundred thirteen billion, six hundred sixty-seven million, nine hundred forty-seven thousand, nine hundred ninety-nine".