9120061568 has 72 divisors (see below), whose sum is σ = 19045062855. Its totient is φ = 4349883648.

The previous prime is 9120061567. The next prime is 9120061571. The reversal of 9120061568 is 8651600219.

It is a powerful number, because all its prime factors have an exponent greater than 1 and also an Achilles number because it is not a perfect power.

It can be written as a sum of positive squares in only one way, i.e., 4560030784 + 4560030784 = 67528^2 + 67528^2 .

It is an ABA number since it can be written as A⋅B^A, here for A=2, B=67528.

It is a super-2 number, since 2×9120061568² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (9120061567) by changing a digit.

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 8 ways as a sum of consecutive naturals, for example, 24850121 + ... + 24850487.

Almost surely, 2^9120061568 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 9120061568

9120061568 is an abundant number, since it is smaller than the sum of its proper divisors (9925001287).

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

9120061568 is an frugal number, since it uses more digits than its factorization.

9120061568 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 794 (or 392 counting only the distinct ones).

The product of its (nonzero) digits is 25920, while the sum is 38.

The square root of 9120061568 is about 95499.0134399304. The cubic root of 9120061568 is about 2089.2925551426.

The spelling of 9120061568 in words is "nine billion, one hundred twenty million, sixty-one thousand, five hundred sixty-eight".