720228915936 has 144 divisors (see below), whose sum is σ = 2107701243648. Its totient is φ = 233174073600.

The previous prime is 720228915907. The next prime is 720228915953. The reversal of 720228915936 is 639519822027.

720228915936 is a `hidden beast` number, since 7 + 20 + 2 + 28 + 9 + 1 + 593 + 6 = 666.

It is a tau number, because it is divible by the number of its divisors (144).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1570131 + ... + 1976301.

It is an arithmetic number, because the mean of its divisors is an integer number (14636814192).

Almost surely, 2^720228915936 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 720228915936, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1053850621824).

720228915936 is an abundant number, since it is smaller than the sum of its proper divisors (1387472327712).

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

720228915936 is a wasteful number, since it uses less digits than its factorization.

720228915936 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 406365 (or 406354 counting only the distinct ones).

The product of its (nonzero) digits is 3265920, while the sum is 54.

The spelling of 720228915936 in words is "seven hundred twenty billion, two hundred twenty-eight million, nine hundred fifteen thousand, nine hundred thirty-six".