65267950106399 has 2 divisors, whose sum is σ = 65267950106400. Its totient is φ = 65267950106398.

The previous prime is 65267950106389. The next prime is 65267950106419. The reversal of 65267950106399 is 99360105976256.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 65267950106399 - 2²⁰ = 65267949057823 is a prime.

It is a super-2 number, since 2×65267950106399² (a number of 28 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (65267950106309) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 32633975053199 + 32633975053200.

It is an arithmetic number, because the mean of its divisors is an integer number (32633975053200).

Almost surely, 2^{65267950106399} is an apocalyptic number.

65267950106399 is a deficient number, since it is larger than the sum of its proper divisors (1).

65267950106399 is an equidigital number, since it uses as much as digits as its factorization.

65267950106399 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 165337200, while the sum is 68.

The spelling of 65267950106399 in words is "sixty-five trillion, two hundred sixty-seven billion, nine hundred fifty million, one hundred six thousand, three hundred ninety-nine".