720560720552 has 8 divisors (see below), whose sum is σ = 1351051351050. Its totient is φ = 360280360272.

The previous prime is 720560720549. The next prime is 720560720591. The reversal of 720560720552 is 255027065027.

It can be written as a sum of positive squares in only one way, i.e., 502746230116 + 217814490436 = 709046^2 + 466706^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 45035045027 + ... + 45035045042.

Almost surely, 2^720560720552 is an apocalyptic number.

It is an amenable number.

720560720552 is a deficient number, since it is larger than the sum of its proper divisors (630490630498).

720560720552 is a wasteful number, since it uses less digits than its factorization.

720560720552 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 90070090075 (or 90070090071 counting only the distinct ones).

The product of its (nonzero) digits is 294000, while the sum is 41.

Adding to 720560720552 its reverse (255027065027), we get a palindrome (975587785579).

The spelling of 720560720552 in words is "seven hundred twenty billion, five hundred sixty million, seven hundred twenty thousand, five hundred fifty-two".