172665063 has 12 divisors (see below), whose sum is σ = 255488688. Its totient is φ = 112302240.

The previous prime is 172665061. The next prime is 172665067. The reversal of 172665063 is 360566271.

172665063 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 172665063 - 2¹ = 172665061 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (172665061) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 233595 + ... + 234332.

It is an arithmetic number, because the mean of its divisors is an integer number (21290724).

Almost surely, 2^172665063 is an apocalyptic number.

172665063 is a deficient number, since it is larger than the sum of its proper divisors (82823625).

172665063 is a wasteful number, since it uses less digits than its factorization.

172665063 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 467974 (or 467971 counting only the distinct ones).

The product of its (nonzero) digits is 45360, while the sum is 36.

The square root of 172665063 is about 13140.2078750680. The cubic root of 172665063 is about 556.8456403178.

The spelling of 172665063 in words is "one hundred seventy-two million, six hundred sixty-five thousand, sixty-three".