189164305008 has 120 divisors (see below), whose sum is σ = 621377678688. Its totient is φ = 52586205696.

The previous prime is 189164304991. The next prime is 189164305021. The reversal of 189164305008 is 800503461981.

189164305008 is a `hidden beast` number, since 1 + 89 + 1 + 64 + 3 + 0 + 500 + 8 = 666.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2498691 + ... + 2573282.

Almost surely, 2^189164305008 is an apocalyptic number.

189164305008 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is an amenable number.

189164305008 is an abundant number, since it is smaller than the sum of its proper divisors (432213373680).

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

189164305008 is a wasteful number, since it uses less digits than its factorization.

189164305008 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5072031 (or 5072022 counting only the distinct ones).

The product of its (nonzero) digits is 207360, while the sum is 45.

Adding to 189164305008 its reverse (800503461981), we get a palindrome (989667766989).

The spelling of 189164305008 in words is "one hundred eighty-nine billion, one hundred sixty-four million, three hundred five thousand, eight".