172116436307 has 2 divisors, whose sum is σ = 172116436308. Its totient is φ = 172116436306.

The previous prime is 172116436243. The next prime is 172116436319. The reversal of 172116436307 is 703634611271.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 172116436307 - 2⁶ = 172116436243 is a prime.

It is not a weakly prime, because it can be changed into another prime (172116436367) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 86058218153 + 86058218154.

It is an arithmetic number, because the mean of its divisors is an integer number (86058218154).

Almost surely, 2^172116436307 is an apocalyptic number.

172116436307 is a deficient number, since it is larger than the sum of its proper divisors (1).

172116436307 is an equidigital number, since it uses as much as digits as its factorization.

172116436307 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 127008, while the sum is 41.

The spelling of 172116436307 in words is "one hundred seventy-two billion, one hundred sixteen million, four hundred thirty-six thousand, three hundred seven".