7720116544 has 28 divisors (see below), whose sum is σ = 17508122464. Its totient is φ = 3308621184.

The previous prime is 7720116529. The next prime is 7720116643. The reversal of 7720116544 is 4456110277.

It is a tau number, because it is divible by the number of its divisors (28).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8615754 + ... + 8616649.

It is an arithmetic number, because the mean of its divisors is an integer number (625290088).

Almost surely, 2^7720116544 is an apocalyptic number.

It is an amenable number.

7720116544 is an abundant number, since it is smaller than the sum of its proper divisors (9788005920).

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

7720116544 is a wasteful number, since it uses less digits than its factorization.

7720116544 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17232422 (or 17232412 counting only the distinct ones).

The product of its (nonzero) digits is 47040, while the sum is 37.

The square root of 7720116544 is about 87864.1937537698. The cubic root of 7720116544 is about 1976.3989698528.

The spelling of 7720116544 in words is "seven billion, seven hundred twenty million, one hundred sixteen thousand, five hundred forty-four".