320985848736 has 240 divisors, whose sum is σ = 1083397835520. Its totient is φ = 91325283840.

The previous prime is 320985848731. The next prime is 320985848767. The reversal of 320985848736 is 637848589023.

320985848736 is a `hidden beast` number, since 32 + 0 + 98 + 5 + 8 + 487 + 36 = 666.

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

It is not an unprimeable number, because it can be changed into a prime (320985848731) by changing a digit.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 4299406 + ... + 4373426.

It is an arithmetic number, because the mean of its divisors is an integer number (4514157648).

Almost surely, 2^320985848736 is an apocalyptic number.

320985848736 is a gapful number since it is divisible by the number (36) 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 320985848736, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (541698917760).

320985848736 is an abundant number, since it is smaller than the sum of its proper divisors (762411986784).

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

320985848736 is a wasteful number, since it uses less digits than its factorization.

320985848736 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 74289 (or 74272 counting only the distinct ones).

The product of its (nonzero) digits is 69672960, while the sum is 63.

The spelling of 320985848736 in words is "three hundred twenty billion, nine hundred eighty-five million, eight hundred forty-eight thousand, seven hundred thirty-six".