666159248 has 40 divisors (see below), whose sum is σ = 1368364800. Its totient is φ = 313614720.

The previous prime is 666159227. The next prime is 666159253. The reversal of 666159248 is 842951666.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 203 + ... + 36501.

It is an arithmetic number, because the mean of its divisors is an integer number (34209120).

Almost surely, 2^666159248 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 666159248, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (684182400).

666159248 is an abundant number, since it is smaller than the sum of its proper divisors (702205552).

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

666159248 is a wasteful number, since it uses less digits than its factorization.

666159248 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 36375 (or 36369 counting only the distinct ones).

The product of its digits is 622080, while the sum is 47.

The square root of 666159248 is about 25810.0609840426. The cubic root of 666159248 is about 873.3587729642.

The spelling of 666159248 in words is "six hundred sixty-six million, one hundred fifty-nine thousand, two hundred forty-eight".