9990416171 has 4 divisors (see below), whose sum is σ = 9990879144. Its totient is φ = 9989953200.

The previous prime is 9990416153. The next prime is 9990416173. The reversal of 9990416171 is 1716140999.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 1716140999 = 61 ⋅28133459.

It is a cyclic number.

It is not a de Polignac number, because 9990416171 - 2²⁶ = 9923307307 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (9990416173) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 197450 + ... + 242831.

It is an arithmetic number, because the mean of its divisors is an integer number (2497719786).

Almost surely, 2^9990416171 is an apocalyptic number.

9990416171 is a deficient number, since it is larger than the sum of its proper divisors (462973).

9990416171 is a wasteful number, since it uses less digits than its factorization.

9990416171 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 462972.

The product of its (nonzero) digits is 122472, while the sum is 47.

The square root of 9990416171 is about 99952.0693682727. The cubic root of 9990416171 is about 2153.7462122545.

The spelling of 9990416171 in words is "nine billion, nine hundred ninety million, four hundred sixteen thousand, one hundred seventy-one".