72660156737093 has 2 divisors, whose sum is σ = 72660156737094. Its totient is φ = 72660156737092.

The previous prime is 72660156737089. The next prime is 72660156737099. The reversal of 72660156737093 is 39073765106627.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 53726231913124 + 18933924823969 = 7329818^2 + 4351313^2 .

It is an emirp because it is prime and its reverse (39073765106627) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 72660156737093 - 2² = 72660156737089 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (72660156737099) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 36330078368546 + 36330078368547.

It is an arithmetic number, because the mean of its divisors is an integer number (36330078368547).

Almost surely, 2^{72660156737093} is an apocalyptic number.

It is an amenable number.

72660156737093 is a deficient number, since it is larger than the sum of its proper divisors (1).

72660156737093 is an equidigital number, since it uses as much as digits as its factorization.

72660156737093 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 60011280, while the sum is 62.

The spelling of 72660156737093 in words is "seventy-two trillion, six hundred sixty billion, one hundred fifty-six million, seven hundred thirty-seven thousand, ninety-three".