9999917466903 has 128 divisors (see below), whose sum is σ = 18298988789760. Its totient is φ = 5255761230720.

The previous prime is 9999917466901. The next prime is 9999917466907. The reversal of 9999917466903 is 3096647199999.

9999917466903 is a nontrivial binomial coefficient, being equal to C(4472118, 2).

It is not a de Polignac number, because 9999917466903 - 2¹ = 9999917466901 is a prime.

It is a super-2 number, since 2×9999917466903² (a number of 27 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9999917466901) by changing a digit.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 845224198 + ... + 845236028.

It is an arithmetic number, because the mean of its divisors is an integer number (142960849920).

Almost surely, 2^{9999917466903} is an apocalyptic number.

9999917466903 is the 4472117-th triangular number and also the 2236059-th hexagonal number.

9999917466903 is a deficient number, since it is larger than the sum of its proper divisors (8299071322857).

9999917466903 is a wasteful number, since it uses less digits than its factorization.

9999917466903 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13066 (or 13060 counting only the distinct ones).

The product of its (nonzero) digits is 1607077584, while the sum is 81.

The spelling of 9999917466903 in words is "nine trillion, nine hundred ninety-nine billion, nine hundred seventeen million, four hundred sixty-six thousand, nine hundred three".