166183343828 has 24 divisors (see below), whose sum is σ = 300868404480. Its totient is φ = 80221309280.

The previous prime is 166183343803. The next prime is 166183343891. The reversal of 166183343828 is 828343381661.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 166183343828.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2283125 + ... + 2354787.

It is an arithmetic number, because the mean of its divisors is an integer number (12536183520).

Almost surely, 2^166183343828 is an apocalyptic number.

It is an amenable number.

166183343828 is a deficient number, since it is larger than the sum of its proper divisors (134685060652).

166183343828 is a wasteful number, since it uses less digits than its factorization.

166183343828 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 91687 (or 91685 counting only the distinct ones).

The product of its digits is 3981312, while the sum is 53.

The spelling of 166183343828 in words is "one hundred sixty-six billion, one hundred eighty-three million, three hundred forty-three thousand, eight hundred twenty-eight".