166630416 has 80 divisors (see below), whose sum is σ = 442900224. Its totient is φ = 53957632.

The previous prime is 166630411. The next prime is 166630427. The reversal of 166630416 is 614036661.

It is not an unprimeable number, because it can be changed into a prime (166630411) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 525490 + ... + 525806.

Almost surely, 2^166630416 is an apocalyptic number.

166630416 is a gapful number since it is divisible by the number (16) 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 166630416, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (221450112).

166630416 is an abundant number, since it is smaller than the sum of its proper divisors (276269808).

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

166630416 is a wasteful number, since it uses less digits than its factorization.

166630416 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 608 (or 602 counting only the distinct ones).

The product of its (nonzero) digits is 15552, while the sum is 33.

The square root of 166630416 is about 12908.5404287239. The cubic root of 166630416 is about 550.2813062347.

The spelling of 166630416 in words is "one hundred sixty-six million, six hundred thirty thousand, four hundred sixteen".