172960512082321 has 2 divisors, whose sum is σ = 172960512082322. Its totient is φ = 172960512082320.

The previous prime is 172960512082313. The next prime is 172960512082499. The reversal of 172960512082321 is 123280215069271.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 172920159307921 + 40352774400 = 13149911^2 + 200880^2 .

It is a cyclic number.

It is not a de Polignac number, because 172960512082321 - 2³ = 172960512082313 is a prime.

It is not a weakly prime, because it can be changed into another prime (172960512082301) 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, 86480256041160 + 86480256041161.

It is an arithmetic number, because the mean of its divisors is an integer number (86480256041161).

Almost surely, 2^{172960512082321} is an apocalyptic number.

It is an amenable number.

172960512082321 is a deficient number, since it is larger than the sum of its proper divisors (1).

172960512082321 is an equidigital number, since it uses as much as digits as its factorization.

172960512082321 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 725760, while the sum is 49.

The spelling of 172960512082321 in words is "one hundred seventy-two trillion, nine hundred sixty billion, five hundred twelve million, eighty-two thousand, three hundred twenty-one".