72163264646659 has 2 divisors, whose sum is σ = 72163264646660. Its totient is φ = 72163264646658.

The previous prime is 72163264646633. The next prime is 72163264646701. The reversal of 72163264646659 is 95664646236127.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 72163264646659 - 2⁹ = 72163264646147 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 72163264646594 and 72163264646603.

It is not a weakly prime, because it can be changed into another prime (72163268646659) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 36081632323329 + 36081632323330.

It is an arithmetic number, because the mean of its divisors is an integer number (36081632323330).

Almost surely, 2^{72163264646659} is an apocalyptic number.

72163264646659 is a deficient number, since it is larger than the sum of its proper divisors (1).

72163264646659 is an equidigital number, since it uses as much as digits as its factorization.

72163264646659 is an evil number, because the sum of its binary digits is even.

The product of its digits is 470292480, while the sum is 67.

The spelling of 72163264646659 in words is "seventy-two trillion, one hundred sixty-three billion, two hundred sixty-four million, six hundred forty-six thousand, six hundred fifty-nine".