660502206 has 144 divisors (see below), whose sum is σ = 1860584544. Its totient is φ = 164882304.

The previous prime is 660502189. The next prime is 660502253. The reversal of 660502206 is 602205066.

It is a self number, because there is not a number n which added to its sum of digits gives 660502206.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 590760 + ... + 591876.

It is an arithmetic number, because the mean of its divisors is an integer number (12920726).

Almost surely, 2^660502206 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 660502206, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (930292272).

660502206 is an abundant number, since it is smaller than the sum of its proper divisors (1200082338).

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

660502206 is a wasteful number, since it uses less digits than its factorization.

660502206 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1183 (or 1161 counting only the distinct ones).

The product of its (nonzero) digits is 4320, while the sum is 27.

The square root of 660502206 is about 25700.2374697200. The cubic root of 660502206 is about 870.8795464915.

The spelling of 660502206 in words is "six hundred sixty million, five hundred two thousand, two hundred six".