16189866290 has 128 divisors (see below), whose sum is σ = 33560593920. Its totient is φ = 5577910272.

The previous prime is 16189866263. The next prime is 16189866299. The reversal of 16189866290 is 9266898161.

It is a happy number.

It is a super-2 number, since 2×16189866290² (a number of 21 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (16189866299) 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, 22086764 + ... + 22087496.

It is an arithmetic number, because the mean of its divisors is an integer number (262192140).

Almost surely, 2^16189866290 is an apocalyptic number.

16189866290 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

16189866290 is an abundant number, since it is smaller than the sum of its proper divisors (17370727630).

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

16189866290 is a wasteful number, since it uses less digits than its factorization.

16189866290 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 948.

The product of its (nonzero) digits is 2239488, while the sum is 56.

The spelling of 16189866290 in words is "sixteen billion, one hundred eighty-nine million, eight hundred sixty-six thousand, two hundred ninety".