166530364 has 144 divisors (see below), whose sum is σ = 417088000. Its totient is φ = 56453760.

The previous prime is 166530347. The next prime is 166530389. The reversal of 166530364 is 463035661.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 836737 + ... + 836935.

Almost surely, 2^166530364 is an apocalyptic number.

166530364 is a gapful number since it is divisible by the number (14) 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 166530364, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (208544000).

166530364 is an abundant number, since it is smaller than the sum of its proper divisors (250557636).

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

166530364 is a wasteful number, since it uses less digits than its factorization.

166530364 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 264 (or 251 counting only the distinct ones).

The product of its (nonzero) digits is 38880, while the sum is 34.

The square root of 166530364 is about 12904.6644280276. The cubic root of 166530364 is about 550.1711467377.

The spelling of 166530364 in words is "one hundred sixty-six million, five hundred thirty thousand, three hundred sixty-four".