65164645999 has 2 divisors, whose sum is σ = 65164646000. Its totient is φ = 65164645998.

The previous prime is 65164645991. The next prime is 65164646021. The reversal of 65164645999 is 99954646156.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 65164645999 - 2³ = 65164645991 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 65164645999.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (65164645991) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 32582322999 + 32582323000.

It is an arithmetic number, because the mean of its divisors is an integer number (32582323000).

Almost surely, 2^65164645999 is an apocalyptic number.

65164645999 is a deficient number, since it is larger than the sum of its proper divisors (1).

65164645999 is an equidigital number, since it uses as much as digits as its factorization.

65164645999 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 62985600, while the sum is 64.

The spelling of 65164645999 in words is "sixty-five billion, one hundred sixty-four million, six hundred forty-five thousand, nine hundred ninety-nine".