166426254216 has 48 divisors (see below), whose sum is σ = 450801889200. Its totient is φ = 55467526752.

The previous prime is 166426254187. The next prime is 166426254223. The reversal of 166426254216 is 612452624661.

166426254216 is a `hidden beast` number, since 1 + 6 + 6 + 4 + 2 + 625 + 4 + 2 + 16 = 666.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 356655 + ... + 678273.

It is an arithmetic number, because the mean of its divisors is an integer number (9391706025).

Almost surely, 2^166426254216 is an apocalyptic number.

It is an amenable number.

166426254216 is an abundant number, since it is smaller than the sum of its proper divisors (284375634984).

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

166426254216 is a wasteful number, since it uses less digits than its factorization.

166426254216 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 328818 (or 328811 counting only the distinct ones).

The product of its digits is 829440, while the sum is 45.

Adding to 166426254216 its reverse (612452624661), we get a palindrome (778878878877).

The spelling of 166426254216 in words is "one hundred sixty-six billion, four hundred twenty-six million, two hundred fifty-four thousand, two hundred sixteen".