28166191482 has 96 divisors (see below), whose sum is σ = 68833820160. Its totient is φ = 7624425600.

The previous prime is 28166191457. The next prime is 28166191531. The reversal of 28166191482 is 28419166182.

It is a super-3 number, since 3×28166191482³ (a number of 32 digits) contains 333 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 244444 + ... + 340712.

It is an arithmetic number, because the mean of its divisors is an integer number (717018960).

Almost surely, 2^28166191482 is an apocalyptic number.

28166191482 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 28166191482, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (34416910080).

28166191482 is an abundant number, since it is smaller than the sum of its proper divisors (40667628678).

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

28166191482 is a wasteful number, since it uses less digits than its factorization.

28166191482 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 96340 (or 96329 counting only the distinct ones).

The product of its digits is 331776, while the sum is 48.

The spelling of 28166191482 in words is "twenty-eight billion, one hundred sixty-six million, one hundred ninety-one thousand, four hundred eighty-two".