9651539016 has 96 divisors (see below), whose sum is σ = 31186980000. Its totient is φ = 2757579552.

The previous prime is 9651538997. The next prime is 9651539017. The reversal of 9651539016 is 6109351569.

9651539016 is a `hidden beast` number, since 96 + 515 + 39 + 0 + 16 = 666.

It is not an unprimeable number, because it can be changed into a prime (9651539017) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 445366 + ... + 466533.

It is an arithmetic number, because the mean of its divisors is an integer number (324864375).

Almost surely, 2^9651539016 is an apocalyptic number.

It is an amenable number.

9651539016 is an abundant number, since it is smaller than the sum of its proper divisors (21535440984).

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

9651539016 is a wasteful number, since it uses less digits than its factorization.

9651539016 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 911928 (or 911911 counting only the distinct ones).

The product of its (nonzero) digits is 218700, while the sum is 45.

The square root of 9651539016 is about 98242.2465948331. The cubic root of 9651539016 is about 2129.1137118082.

It can be divided in two parts, 965153 and 9016, that added together give a square (974169 = 987²).

The spelling of 9651539016 in words is "nine billion, six hundred fifty-one million, five hundred thirty-nine thousand, sixteen".