166663648 has 24 divisors (see below), whose sum is σ = 347421312. Its totient is φ = 78429696.

The previous prime is 166663633. The next prime is 166663661. The reversal of 166663648 is 846366661.

It is a junction number, because it is equal to n+sod(n) for n = 166663598 and 166663607.

It is a congruent number.

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, 152640 + ... + 153727.

It is an arithmetic number, because the mean of its divisors is an integer number (14475888).

Almost surely, 2^166663648 is an apocalyptic number.

It is an amenable number.

166663648 is an abundant number, since it is smaller than the sum of its proper divisors (180757664).

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

166663648 is a wasteful number, since it uses less digits than its factorization.

166663648 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 306394 (or 306386 counting only the distinct ones).

The product of its digits is 746496, while the sum is 46.

The square root of 166663648 is about 12909.8275743714. The cubic root of 166663648 is about 550.3178856565.

The spelling of 166663648 in words is "one hundred sixty-six million, six hundred sixty-three thousand, six hundred forty-eight".