323995351680 has 1024 divisors, whose sum is σ = 1540759449600. Its totient is φ = 62141644800.

The previous prime is 323995351663. The next prime is 323995351711. The reversal of 323995351680 is 86153599323.

323995351680 is a `hidden beast` number, since 3 + 2 + 3 + 99 + 535 + 16 + 8 + 0 = 666.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is an unprimeable number.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 17287915 + ... + 17306645.

It is an arithmetic number, because the mean of its divisors is an integer number (1504647900).

Almost surely, 2^323995351680 is an apocalyptic number.

323995351680 is a gapful number since it is divisible by the number (30) 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 323995351680, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (770379724800).

323995351680 is an abundant number, since it is smaller than the sum of its proper divisors (1216764097920).

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

323995351680 is a wasteful number, since it uses less digits than its factorization.

323995351680 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18790 (or 18772 counting only the distinct ones).

The product of its (nonzero) digits is 5248800, while the sum is 54.

The spelling of 323995351680 in words is "three hundred twenty-three billion, nine hundred ninety-five million, three hundred fifty-one thousand, six hundred eighty".