166340752 has 40 divisors (see below), whose sum is σ = 342444600. Its totient is φ = 78124032.

The previous prime is 166340747. The next prime is 166340821. The reversal of 166340752 is 257043661.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 62789776 + 103550976 = 7924^2 + 10176^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 12324 + ... + 22012.

It is an arithmetic number, because the mean of its divisors is an integer number (8561115).

Almost surely, 2^166340752 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 166340752, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (171222300).

166340752 is an abundant number, since it is smaller than the sum of its proper divisors (176103848).

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

166340752 is a wasteful number, since it uses less digits than its factorization.

166340752 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9763 (or 9757 counting only the distinct ones).

The product of its (nonzero) digits is 30240, while the sum is 34.

The square root of 166340752 is about 12897.3156897085. The cubic root of 166340752 is about 549.9622585672.

The spelling of 166340752 in words is "one hundred sixty-six million, three hundred forty thousand, seven hundred fifty-two".