660320348160 has 576 divisors, whose sum is σ = 2333059485120. Its totient is φ = 159318016000.

The previous prime is 660320348159. The next prime is 660320348167. The reversal of 660320348160 is 61843023066.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (660320348167) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 1490564899 + ... + 1490565341.

It is an arithmetic number, because the mean of its divisors is an integer number (4050450495).

Almost surely, 2^660320348160 is an apocalyptic number.

660320348160 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 660320348160, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1166529742560).

660320348160 is an abundant number, since it is smaller than the sum of its proper divisors (1672739136960).

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

660320348160 is a wasteful number, since it uses less digits than its factorization.

660320348160 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 896 (or 865 counting only the distinct ones).

The product of its (nonzero) digits is 124416, while the sum is 39.

The spelling of 660320348160 in words is "six hundred sixty billion, three hundred twenty million, three hundred forty-eight thousand, one hundred sixty".