172066515716707 has 2 divisors, whose sum is σ = 172066515716708. Its totient is φ = 172066515716706.

The previous prime is 172066515716659. The next prime is 172066515716729. The reversal of 172066515716707 is 707617515660271.

172066515716707 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-172066515716707 is a prime.

It is not a weakly prime, because it can be changed into another prime (172066515746707) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 86033257858353 + 86033257858354.

It is an arithmetic number, because the mean of its divisors is an integer number (86033257858354).

Almost surely, 2^{172066515716707} is an apocalyptic number.

172066515716707 is a deficient number, since it is larger than the sum of its proper divisors (1).

172066515716707 is an equidigital number, since it uses as much as digits as its factorization.

172066515716707 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 25930800, while the sum is 61.

The spelling of 172066515716707 in words is "one hundred seventy-two trillion, sixty-six billion, five hundred fifteen million, seven hundred sixteen thousand, seven hundred seven".