720332053920 has 576 divisors, whose sum is σ = 2711581681536. Its totient is φ = 179955302400.

The previous prime is 720332053901. The next prime is 720332053921. The reversal of 720332053920 is 29350233027.

720332053920 is a `hidden beast` number, since 72 + 0 + 3 + 32 + 0 + 539 + 20 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is not an unprimeable number, because it can be changed into a prime (720332053921) by changing a digit.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 150035520 + ... + 150040320.

It is an arithmetic number, because the mean of its divisors is an integer number (4707607086).

Almost surely, 2^720332053920 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 720332053920, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1355790840768).

720332053920 is an abundant number, since it is smaller than the sum of its proper divisors (1991249627616).

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

720332053920 is a wasteful number, since it uses less digits than its factorization.

720332053920 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5075 (or 5055 counting only the distinct ones).

The product of its (nonzero) digits is 68040, while the sum is 36.

Adding to 720332053920 its reverse (29350233027), we get a palindrome (749682286947).

The spelling of 720332053920 in words is "seven hundred twenty billion, three hundred thirty-two million, fifty-three thousand, nine hundred twenty".