166230690912 has 1920 divisors, whose sum is σ = 672748167168. Its totient is φ = 39414988800.

The previous prime is 166230690877. The next prime is 166230690959. The reversal of 166230690912 is 219096032661.

166230690912 is a `hidden beast` number, since 1 + 6 + 623 + 0 + 6 + 9 + 0 + 9 + 12 = 666.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 319 ways as a sum of consecutive naturals, for example, 4492721358 + ... + 4492721394.

Almost surely, 2^166230690912 is an apocalyptic number.

166230690912 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 166230690912, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (336374083584).

166230690912 is an abundant number, since it is smaller than the sum of its proper divisors (506517476256).

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

166230690912 is a wasteful number, since it uses less digits than its factorization.

166230690912 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 154 (or 137 counting only the distinct ones).

The product of its (nonzero) digits is 209952, while the sum is 45.

The spelling of 166230690912 in words is "one hundred sixty-six billion, two hundred thirty million, six hundred ninety thousand, nine hundred twelve".