660862448204616 has 192 divisors, whose sum is σ = 2068554200169600. Its totient is φ = 186692310604800.

The previous prime is 660862448204467. The next prime is 660862448204653. The reversal of 660862448204616 is 616402844268066.

It is a happy number.

660862448204616 is a `hidden beast` number, since 6 + 6 + 0 + 8 + 6 + 2 + 4 + 4 + 8 + 2 + 0 + 4 + 616 = 666.

It is a Harshad number since it is a multiple of its sum of digits (63).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 2571510846 + ... + 2571767826.

It is an arithmetic number, because the mean of its divisors is an integer number (10773719792550).

Almost surely, 2^{660862448204616} 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 660862448204616, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1034277100084800).

660862448204616 is an abundant number, since it is smaller than the sum of its proper divisors (1407691751964984).

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

660862448204616 is a wasteful number, since it uses less digits than its factorization.

660862448204616 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 314420 (or 314413 counting only the distinct ones).

The product of its (nonzero) digits is 127401984, while the sum is 63.

The spelling of 660862448204616 in words is "six hundred sixty trillion, eight hundred sixty-two billion, four hundred forty-eight million, two hundred four thousand, six hundred sixteen".