166833338820 has 48 divisors (see below), whose sum is σ = 467160969408. Its totient is φ = 44486259840.

The previous prime is 166833338801. The next prime is 166833338863. The reversal of 166833338820 is 28833338661.

It is a hoax number, since the sum of its digits (51) coincides with the sum of the digits of its distinct prime factors.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1075827 + ... + 1221093.

It is an arithmetic number, because the mean of its divisors is an integer number (9732520196).

Almost surely, 2^166833338820 is an apocalyptic number.

166833338820 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

166833338820 is an abundant number, since it is smaller than the sum of its proper divisors (300327630588).

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

166833338820 is a wasteful number, since it uses less digits than its factorization.

166833338820 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 164420 (or 164418 counting only the distinct ones).

The product of its (nonzero) digits is 2985984, while the sum is 51.

The spelling of 166833338820 in words is "one hundred sixty-six billion, eight hundred thirty-three million, three hundred thirty-eight thousand, eight hundred twenty".