172502066017 has 4 divisors (see below), whose sum is σ = 172544906416. Its totient is φ = 172459225620.

The previous prime is 172502065991. The next prime is 172502066027. The reversal of 172502066017 is 710660205271.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-172502066017 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (172502066027) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 21414159 + ... + 21422212.

It is an arithmetic number, because the mean of its divisors is an integer number (43136226604).

Almost surely, 2^172502066017 is an apocalyptic number.

It is an amenable number.

172502066017 is a deficient number, since it is larger than the sum of its proper divisors (42840399).

172502066017 is an equidigital number, since it uses as much as digits as its factorization.

172502066017 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 42840398.

The product of its (nonzero) digits is 35280, while the sum is 37.

The spelling of 172502066017 in words is "one hundred seventy-two billion, five hundred two million, sixty-six thousand, seventeen".