189923164206 has 8 divisors (see below), whose sum is σ = 379846328424. Its totient is φ = 63307721400.

The previous prime is 189923164139. The next prime is 189923164261. The reversal of 189923164206 is 602461329981.

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

189923164206 is an admirable number.

It is a super-2 number, since 2×189923164206² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

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, 15826930345 + ... + 15826930356.

It is an arithmetic number, because the mean of its divisors is an integer number (47480791053).

Almost surely, 2^189923164206 is an apocalyptic number.

189923164206 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

189923164206 is a wasteful number, since it uses less digits than its factorization.

189923164206 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31653860706.

The product of its (nonzero) digits is 1119744, while the sum is 51.

The spelling of 189923164206 in words is "one hundred eighty-nine billion, nine hundred twenty-three million, one hundred sixty-four thousand, two hundred six".