665465115467 has 2 divisors, whose sum is σ = 665465115468. Its totient is φ = 665465115466.

The previous prime is 665465115451. The next prime is 665465115541. The reversal of 665465115467 is 764511564566.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 665465115467 - 2⁴ = 665465115451 is a prime.

It is not a weakly prime, because it can be changed into another prime (665465115067) 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, 332732557733 + 332732557734.

It is an arithmetic number, because the mean of its divisors is an integer number (332732557734).

Almost surely, 2^665465115467 is an apocalyptic number.

665465115467 is a deficient number, since it is larger than the sum of its proper divisors (1).

665465115467 is an equidigital number, since it uses as much as digits as its factorization.

665465115467 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 18144000, while the sum is 56.

The spelling of 665465115467 in words is "six hundred sixty-five billion, four hundred sixty-five million, one hundred fifteen thousand, four hundred sixty-seven".