166506246 has 64 divisors (see below), whose sum is σ = 391219200. Its totient is φ = 52386048.

The previous prime is 166506233. The next prime is 166506247. The reversal of 166506246 is 642605661.

It is a happy number.

166506246 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a self number, because there is not a number n which added to its sum of digits gives 166506246.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (166506247) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 97270 + ... + 98966.

It is an arithmetic number, because the mean of its divisors is an integer number (6112800).

Almost surely, 2^166506246 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 166506246, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (195609600).

166506246 is an abundant number, since it is smaller than the sum of its proper divisors (224712954).

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

166506246 is a wasteful number, since it uses less digits than its factorization.

166506246 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1810 (or 1804 counting only the distinct ones).

The product of its (nonzero) digits is 51840, while the sum is 36.

The square root of 166506246 is about 12903.7299258780. The cubic root of 166506246 is about 550.1445856790.

The spelling of 166506246 in words is "one hundred sixty-six million, five hundred six thousand, two hundred forty-six".