660252066 has 8 divisors (see below), whose sum is σ = 1320504144. Its totient is φ = 220084020.

The previous prime is 660252031. The next prime is 660252083.

660252066 is nontrivially palindromic in base 10.

660252066 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

660252066 is an admirable number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 55021000 + ... + 55021011.

It is an arithmetic number, because the mean of its divisors is an integer number (165063018).

Almost surely, 2^660252066 is an apocalyptic number.

660252066 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

660252066 is a wasteful number, since it uses less digits than its factorization.

660252066 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 110042016.

The product of its (nonzero) digits is 25920, while the sum is 33.

The square root of 660252066 is about 25695.3705168849. The cubic root of 660252066 is about 870.7695951478.

The spelling of 660252066 in words is "six hundred sixty million, two hundred fifty-two thousand, sixty-six".