9905240065 has 8 divisors (see below), whose sum is σ = 13584329280. Its totient is φ = 6792164592.

The previous prime is 9905240039. The next prime is 9905240101. The reversal of 9905240065 is 5600425099.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 9905240065 - 2²³ = 9896851457 is a prime.

It is a super-2 number, since 2×9905240065² (a number of 21 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 141503395 + ... + 141503464.

It is an arithmetic number, because the mean of its divisors is an integer number (1698041160).

Almost surely, 2^9905240065 is an apocalyptic number.

It is an amenable number.

9905240065 is a deficient number, since it is larger than the sum of its proper divisors (3679089215).

9905240065 is a wasteful number, since it uses less digits than its factorization.

9905240065 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 283006871.

The product of its (nonzero) digits is 97200, while the sum is 40.

The square root of 9905240065 is about 99525.0725445603. The cubic root of 9905240065 is about 2147.6079446365.

The spelling of 9905240065 in words is "nine billion, nine hundred five million, two hundred forty thousand, sixty-five".