189808145646060 has 96 divisors (see below), whose sum is σ = 544049929382400. Its totient is φ = 49428094809600.

The previous prime is 189808145646023. The next prime is 189808145646121. The reversal of 189808145646060 is 60646541808981.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 189808145645982 and 189808145646000.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 177008905 + ... + 178077984.

It is an arithmetic number, because the mean of its divisors is an integer number (5667186764400).

Almost surely, 2^{189808145646060} is an apocalyptic number.

189808145646060 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

189808145646060 is an abundant number, since it is smaller than the sum of its proper divisors (354241783736340).

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

189808145646060 is a wasteful number, since it uses less digits than its factorization.

189808145646060 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 355087111 (or 355087109 counting only the distinct ones).

The product of its (nonzero) digits is 79626240, while the sum is 66.

The spelling of 189808145646060 in words is "one hundred eighty-nine trillion, eight hundred eight billion, one hundred forty-five million, six hundred forty-six thousand, sixty".