720993884160 has 384 divisors, whose sum is σ = 2520018708480. Its totient is φ = 174528921600.

The previous prime is 720993884159. The next prime is 720993884173. The reversal of 720993884160 is 61488399027.

It is a tau number, because it is divible by the number of its divisors (384).

It is a super-2 number, since 2×720993884160² (a number of 25 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 720993884160.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 334877644 + ... + 334879796.

It is an arithmetic number, because the mean of its divisors is an integer number (6562548720).

Almost surely, 2^720993884160 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 720993884160, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1260009354240).

720993884160 is an abundant number, since it is smaller than the sum of its proper divisors (1799024824320).

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

720993884160 is a wasteful number, since it uses less digits than its factorization.

720993884160 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3185 (or 3165 counting only the distinct ones).

The product of its (nonzero) digits is 5225472, while the sum is 57.

The spelling of 720993884160 in words is "seven hundred twenty billion, nine hundred ninety-three million, eight hundred eighty-four thousand, one hundred sixty".