172666753 has 8 divisors (see below), whose sum is σ = 202667072. Its totient is φ = 143999856.

The previous prime is 172666751. The next prime is 172666759. The reversal of 172666753 is 357666271.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 172666753 - 2¹ = 172666751 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (172666751) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 333075 + ... + 333592.

It is an arithmetic number, because the mean of its divisors is an integer number (25333384).

Almost surely, 2^172666753 is an apocalyptic number.

It is an amenable number.

172666753 is a deficient number, since it is larger than the sum of its proper divisors (30000319).

172666753 is an equidigital number, since it uses as much as digits as its factorization.

172666753 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 666711.

The product of its digits is 317520, while the sum is 43.

The square root of 172666753 is about 13140.2721813515. The cubic root of 172666753 is about 556.8474570646.

The spelling of 172666753 in words is "one hundred seventy-two million, six hundred sixty-six thousand, seven hundred fifty-three".