320061738480 has 320 divisors, whose sum is σ = 1131335589888. Its totient is φ = 74093409280.

The previous prime is 320061738461. The next prime is 320061738487. The reversal of 320061738480 is 84837160023.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (320061738487) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 39281767 + ... + 39289913.

Almost surely, 2^320061738480 is an apocalyptic number.

320061738480 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 320061738480, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (565667794944).

320061738480 is an abundant number, since it is smaller than the sum of its proper divisors (811273851408).

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

320061738480 is a wasteful number, since it uses less digits than its factorization.

320061738480 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8844 (or 8838 counting only the distinct ones).

The product of its (nonzero) digits is 193536, while the sum is 42.

The spelling of 320061738480 in words is "three hundred twenty billion, sixty-one million, seven hundred thirty-eight thousand, four hundred eighty".