166463424 has 140 divisors (see below), whose sum is σ = 498997224. Its totient is φ = 54867456.

The previous prime is 166463417. The next prime is 166463447. The reversal of 166463424 is 424364661.

166463424 is a `hidden beast` number, since 1 + 6 + 646 + 3 + 4 + 2 + 4 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a nude number because it is divisible by every one of its digits.

Its product of digits (82944) is a multiple of the sum of its prime factors (384).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 844894 + ... + 845090.

Almost surely, 2^166463424 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 166463424, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (249498612).

166463424 is an abundant number, since it is smaller than the sum of its proper divisors (332533800).

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

166463424 is a wasteful number, since it uses less digits than its factorization.

166463424 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 384 (or 365 counting only the distinct ones).

The product of its digits is 82944, while the sum is 36.

The square root of 166463424 is about 12902.0705315077. The cubic root of 166463424 is about 550.0974196580.

The spelling of 166463424 in words is "one hundred sixty-six million, four hundred sixty-three thousand, four hundred twenty-four".