166443795888 has 20 divisors (see below), whose sum is σ = 429979806168. Its totient is φ = 55481265280.

The previous prime is 166443795841. The next prime is 166443795907. The reversal of 166443795888 is 888597344661.

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, 1733789493 + ... + 1733789588.

Almost surely, 2^166443795888 is an apocalyptic number.

It is an amenable number.

166443795888 is an abundant number, since it is smaller than the sum of its proper divisors (263536010280).

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

166443795888 is a wasteful number, since it uses less digits than its factorization.

166443795888 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3467579092 (or 3467579086 counting only the distinct ones).

The product of its digits is 278691840, while the sum is 69.

The spelling of 166443795888 in words is "one hundred sixty-six billion, four hundred forty-three million, seven hundred ninety-five thousand, eight hundred eighty-eight".