172166633247 has 8 divisors (see below), whose sum is σ = 262349155456. Its totient is φ = 98380933272.

The previous prime is 172166633227. The next prime is 172166633291. The reversal of 172166633247 is 742336661271.

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

It is not a de Polignac number, because 172166633247 - 2⁶ = 172166633183 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 172166633196 and 172166633205.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (172166633227) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4099205533 + ... + 4099205574.

It is an arithmetic number, because the mean of its divisors is an integer number (32793644432).

Almost surely, 2^172166633247 is an apocalyptic number.

172166633247 is a deficient number, since it is larger than the sum of its proper divisors (90182522209).

172166633247 is an equidigital number, since it uses as much as digits as its factorization.

172166633247 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8198411117.

The product of its digits is 1524096, while the sum is 48.

The spelling of 172166633247 in words is "one hundred seventy-two billion, one hundred sixty-six million, six hundred thirty-three thousand, two hundred forty-seven".