172127830666 has 8 divisors (see below), whose sum is σ = 281663722944. Its totient is φ = 78239923020.

The previous prime is 172127830657. The next prime is 172127830703. The reversal of 172127830666 is 666038721271.

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

It is a super-3 number, since 3×172127830666³ (a number of 35 digits) contains 333 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3911996130 + ... + 3911996173.

It is an arithmetic number, because the mean of its divisors is an integer number (35207965368).

Almost surely, 2^172127830666 is an apocalyptic number.

172127830666 is a deficient number, since it is larger than the sum of its proper divisors (109535892278).

172127830666 is a wasteful number, since it uses less digits than its factorization.

172127830666 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7823992316.

The product of its (nonzero) digits is 1016064, while the sum is 49.

The spelling of 172127830666 in words is "one hundred seventy-two billion, one hundred twenty-seven million, eight hundred thirty thousand, six hundred sixty-six".