9945125568 has 140 divisors (see below), whose sum is σ = 33692086032. Its totient is φ = 2841454080.

The previous prime is 9945125557. The next prime is 9945125573. The reversal of 9945125568 is 8655215499.

9945125568 is a `hidden beast` number, since 9 + 9 + 4 + 51 + 25 + 568 = 666.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is an unprimeable number.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 100743 + ... + 173318.

Almost surely, 2^9945125568 is an apocalyptic number.

It is an amenable number.

9945125568 is an abundant number, since it is smaller than the sum of its proper divisors (23746960464).

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

9945125568 is a wasteful number, since it uses less digits than its factorization.

9945125568 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 274092 (or 274073 counting only the distinct ones).

The product of its digits is 3888000, while the sum is 54.

The square root of 9945125568 is about 99725.2504032956. The cubic root of 9945125568 is about 2150.4866803787.

The spelling of 9945125568 in words is "nine billion, nine hundred forty-five million, one hundred twenty-five thousand, five hundred sixty-eight".