72665332162739 has 2 divisors, whose sum is σ = 72665332162740. Its totient is φ = 72665332162738.

The previous prime is 72665332162697. The next prime is 72665332162777. The reversal of 72665332162739 is 93726123356627.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-72665332162739 is a prime.

It is not a weakly prime, because it can be changed into another prime (72665332162439) 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, 36332666081369 + 36332666081370.

It is an arithmetic number, because the mean of its divisors is an integer number (36332666081370).

Almost surely, 2^{72665332162739} is an apocalyptic number.

72665332162739 is a deficient number, since it is larger than the sum of its proper divisors (1).

72665332162739 is an equidigital number, since it uses as much as digits as its factorization.

72665332162739 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 102876480, while the sum is 62.

The spelling of 72665332162739 in words is "seventy-two trillion, six hundred sixty-five billion, three hundred thirty-two million, one hundred sixty-two thousand, seven hundred thirty-nine".