320120678744 has 64 divisors (see below), whose sum is σ = 642932640000. Its totient is φ = 148971650688.

The previous prime is 320120678743. The next prime is 320120678767. The reversal of 320120678744 is 447876021023.

It is a junction number, because it is equal to n+sod(n) for n = 320120678695 and 320120678704.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (320120678741) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 15315869 + ... + 15336755.

It is an arithmetic number, because the mean of its divisors is an integer number (10045822500).

Almost surely, 2^320120678744 is an apocalyptic number.

It is an amenable number.

320120678744 is an abundant number, since it is smaller than the sum of its proper divisors (322811961256).

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

320120678744 is a wasteful number, since it uses less digits than its factorization.

320120678744 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22680 (or 22676 counting only the distinct ones).

The product of its (nonzero) digits is 451584, while the sum is 44.

Adding to 320120678744 its reverse (447876021023), we get a palindrome (767996699767).

The spelling of 320120678744 in words is "three hundred twenty billion, one hundred twenty million, six hundred seventy-eight thousand, seven hundred forty-four".