9908664442 has 16 divisors (see below), whose sum is σ = 15128333064. Its totient is φ = 4866120000.

The previous prime is 9908664439. The next prime is 9908664443. The reversal of 9908664442 is 2444668099.

9908664442 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 4362734601 + 5545929841 = 66051^2 + 74471^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 9908664442.

It is not an unprimeable number, because it can be changed into a prime (9908664443) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 27592 + ... + 143452.

Almost surely, 2^9908664442 is an apocalyptic number.

9908664442 is a deficient number, since it is larger than the sum of its proper divisors (5219668622).

9908664442 is a wasteful number, since it uses less digits than its factorization.

9908664442 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 116625.

The product of its (nonzero) digits is 2985984, while the sum is 52.

The square root of 9908664442 is about 99542.2746475084. The cubic root of 9908664442 is about 2147.8554019379.

The spelling of 9908664442 in words is "nine billion, nine hundred eight million, six hundred sixty-four thousand, four hundred forty-two".