172136446223 has 8 divisors (see below), whose sum is σ = 197571692448. Its totient is φ = 146912281344.

The previous prime is 172136446217. The next prime is 172136446241. The reversal of 172136446223 is 322644631271.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-172136446223 is a prime.

It is a super-2 number, since 2×172136446223² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (172136446243) 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, 52768586 + ... + 52771847.

It is an arithmetic number, because the mean of its divisors is an integer number (24696461556).

Almost surely, 2^172136446223 is an apocalyptic number.

172136446223 is a deficient number, since it is larger than the sum of its proper divisors (25435246225).

172136446223 is a wasteful number, since it uses less digits than its factorization.

172136446223 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 105540673.

The product of its digits is 290304, while the sum is 41.

The spelling of 172136446223 in words is "one hundred seventy-two billion, one hundred thirty-six million, four hundred forty-six thousand, two hundred twenty-three".