9999455505 has 64 divisors (see below), whose sum is σ = 19036684800. Its totient is φ = 4431753216.

The previous prime is 9999455503. The next prime is 9999455563. The reversal of 9999455505 is 5055549999.

It is a happy number.

It is not a de Polignac number, because 9999455505 - 2¹ = 9999455503 is a prime.

It is a super-2 number, since 2×9999455505² (a number of 21 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (9999455503) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 10671 + ... + 141819.

It is an arithmetic number, because the mean of its divisors is an integer number (297448200).

Almost surely, 2^9999455505 is an apocalyptic number.

It is an amenable number.

9999455505 is a deficient number, since it is larger than the sum of its proper divisors (9037229295).

9999455505 is a wasteful number, since it uses less digits than its factorization.

9999455505 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 131210.

The product of its (nonzero) digits is 16402500, while the sum is 60.

The square root of 9999455505 is about 99997.2774879396. The cubic root of 9999455505 is about 2154.3955866916.

The spelling of 9999455505 in words is "nine billion, nine hundred ninety-nine million, four hundred fifty-five thousand, five hundred five".