720541851560 has 16 divisors (see below), whose sum is σ = 1621219166100. Its totient is φ = 288216740608.

The previous prime is 720541851559. The next prime is 720541851613. The reversal of 720541851560 is 65158145027.

720541851560 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 604005643684 + 116536207876 = 777178^2 + 341374^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9006773105 + ... + 9006773184.

Almost surely, 2^720541851560 is an apocalyptic number.

It is an amenable number.

720541851560 is an abundant number, since it is smaller than the sum of its proper divisors (900677314540).

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

720541851560 is a wasteful number, since it uses less digits than its factorization.

720541851560 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18013546300 (or 18013546296 counting only the distinct ones).

The product of its (nonzero) digits is 336000, while the sum is 44.

Adding to 720541851560 its reverse (65158145027), we get a palindrome (785699996587).

The spelling of 720541851560 in words is "seven hundred twenty billion, five hundred forty-one million, eight hundred fifty-one thousand, five hundred sixty".