660982830 has 64 divisors (see below), whose sum is σ = 1679754240. Its totient is φ = 165995136.

The previous prime is 660982823. The next prime is 660982897. The reversal of 660982830 is 38289066.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 95259 + ... + 101961.

It is an arithmetic number, because the mean of its divisors is an integer number (26246160).

Almost surely, 2^660982830 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 660982830, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (839877120).

660982830 is an abundant number, since it is smaller than the sum of its proper divisors (1018771410).

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

660982830 is a wasteful number, since it uses less digits than its factorization.

660982830 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6905.

The product of its (nonzero) digits is 124416, while the sum is 42.

The square root of 660982830 is about 25709.5863443969. The cubic root of 660982830 is about 871.0907313159.

The spelling of 660982830 in words is "six hundred sixty million, nine hundred eighty-two thousand, eight hundred thirty".