660441552 has 40 divisors (see below), whose sum is σ = 1707316320. Its totient is φ = 219995520.

The previous prime is 660441547. The next prime is 660441553. The reversal of 660441552 is 255144066.

660441552 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (660441553) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 82027 + ... + 89717.

It is an arithmetic number, because the mean of its divisors is an integer number (42682908).

Almost surely, 2^660441552 is an apocalyptic number.

It is an amenable number.

660441552 is an abundant number, since it is smaller than the sum of its proper divisors (1046874768).

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

660441552 is a wasteful number, since it uses less digits than its factorization.

660441552 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9491 (or 9485 counting only the distinct ones).

The product of its (nonzero) digits is 28800, while the sum is 33.

The square root of 660441552 is about 25699.0574146213. The cubic root of 660441552 is about 870.8528880163.

The spelling of 660441552 in words is "six hundred sixty million, four hundred forty-one thousand, five hundred fifty-two".