720565204224 has 144 divisors (see below), whose sum is σ = 1929320382528. Its totient is φ = 238742224896.

The previous prime is 720565204207. The next prime is 720565204237. The reversal of 720565204224 is 422402565027.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 252209004 + ... + 252211860.

It is an arithmetic number, because the mean of its divisors is an integer number (13398058212).

Almost surely, 2^720565204224 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 720565204224, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (964660191264).

720565204224 is an abundant number, since it is smaller than the sum of its proper divisors (1208755178304).

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

720565204224 is a wasteful number, since it uses less digits than its factorization.

720565204224 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4740 (or 4726 counting only the distinct ones).

The product of its (nonzero) digits is 268800, while the sum is 39.

The spelling of 720565204224 in words is "seven hundred twenty billion, five hundred sixty-five million, two hundred four thousand, two hundred twenty-four".