166883855500 has 48 divisors (see below), whose sum is σ = 368569656000. Its totient is φ = 66003484800.

The previous prime is 166883855497. The next prime is 166883855531. The reversal of 166883855500 is 5558388661.

166883855500 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1830600 + ... + 1919599.

It is an arithmetic number, because the mean of its divisors is an integer number (7678534500).

Almost surely, 2^166883855500 is an apocalyptic number.

166883855500 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

166883855500 is an abundant number, since it is smaller than the sum of its proper divisors (201685800500).

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

166883855500 is a wasteful number, since it uses less digits than its factorization.

166883855500 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3750307 (or 3750295 counting only the distinct ones).

The product of its (nonzero) digits is 6912000, while the sum is 55.

The spelling of 166883855500 in words is "one hundred sixty-six billion, eight hundred eighty-three million, eight hundred fifty-five thousand, five hundred".