9866503180 has 24 divisors (see below), whose sum is σ = 21938460768. Its totient is φ = 3714448128.

The previous prime is 9866503169. The next prime is 9866503187. The reversal of 9866503180 is 813056689.

It is a super-2 number, since 2×9866503180² (a number of 21 digits) contains 22 as substring.

It is a hoax number, since the sum of its digits (46) coincides with the sum of the digits of its distinct prime factors.

It is a self number, because there is not a number n which added to its sum of digits gives 9866503180.

It is not an unprimeable number, because it can be changed into a prime (9866503187) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 14509224 + ... + 14509903.

It is an arithmetic number, because the mean of its divisors is an integer number (914102532).

Almost surely, 2^9866503180 is an apocalyptic number.

It is an amenable number.

9866503180 is an abundant number, since it is smaller than the sum of its proper divisors (12071957588).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

9866503180 is a wasteful number, since it uses less digits than its factorization.

9866503180 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29019153 (or 29019151 counting only the distinct ones).

The product of its (nonzero) digits is 311040, while the sum is 46.

The square root of 9866503180 is about 99330.2732302695. The cubic root of 9866503180 is about 2144.8047036311.

The spelling of 9866503180 in words is "nine billion, eight hundred sixty-six million, five hundred three thousand, one hundred eighty".