320621925376 has 88 divisors (see below), whose sum is σ = 671729109120. Its totient is φ = 152668741632.

The previous prime is 320621925373. The next prime is 320621925383. The reversal of 320621925376 is 673529126023.

It is a Harshad number since it is a multiple of its sum of digits (46).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (320621925373) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5363685 + ... + 5423131.

Almost surely, 2^320621925376 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 320621925376, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (335864554560).

320621925376 is an abundant number, since it is smaller than the sum of its proper divisors (351107183744).

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

320621925376 is a wasteful number, since it uses less digits than its factorization.

320621925376 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 59719 (or 59701 counting only the distinct ones).

The product of its (nonzero) digits is 816480, while the sum is 46.

The spelling of 320621925376 in words is "three hundred twenty billion, six hundred twenty-one million, nine hundred twenty-five thousand, three hundred seventy-six".