720072006528 has 128 divisors (see below), whose sum is σ = 2230544160000. Its totient is φ = 205734821376.

The previous prime is 720072006499. The next prime is 720072006553. The reversal of 720072006528 is 825600270027.

720072006528 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (128).

It is a super-2 number, since 2×720072006528² (a number of 25 digits) contains 22 as substring.

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, 2601798 + ... + 2865221.

It is an arithmetic number, because the mean of its divisors is an integer number (17426126250).

Almost surely, 2^720072006528 is an apocalyptic number.

It is an amenable number.

720072006528 is an abundant number, since it is smaller than the sum of its proper divisors (1510472153472).

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

720072006528 is an equidigital number, since it uses as much as digits as its factorization.

720072006528 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5467057 (or 5467031 counting only the distinct ones).

The product of its (nonzero) digits is 94080, while the sum is 39.

The spelling of 720072006528 in words is "seven hundred twenty billion, seventy-two million, six thousand, five hundred twenty-eight".