72664430354063 has 2 divisors, whose sum is σ = 72664430354064. Its totient is φ = 72664430354062.

The previous prime is 72664430354039. The next prime is 72664430354083. The reversal of 72664430354063 is 36045303446627.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 72664430354063 - 2⁸ = 72664430353807 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 72664430353996 and 72664430354014.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (72664430354083) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 36332215177031 + 36332215177032.

It is an arithmetic number, because the mean of its divisors is an integer number (36332215177032).

Almost surely, 2^{72664430354063} is an apocalyptic number.

72664430354063 is a deficient number, since it is larger than the sum of its proper divisors (1).

72664430354063 is an equidigital number, since it uses as much as digits as its factorization.

72664430354063 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 26127360, while the sum is 53.

The spelling of 72664430354063 in words is "seventy-two trillion, six hundred sixty-four billion, four hundred thirty million, three hundred fifty-four thousand, sixty-three".