28165544060 has 24 divisors (see below), whose sum is σ = 59243531760. Its totient is φ = 11247953024.

The previous prime is 28165544039. The next prime is 28165544063. The reversal of 28165544060 is 6044556182.

It is a junction number, because it is equal to n+sod(n) for n = 28165543999 and 28165544017.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28165544063) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1128890 + ... + 1153569.

It is an arithmetic number, because the mean of its divisors is an integer number (2468480490).

Almost surely, 2^28165544060 is an apocalyptic number.

28165544060 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

28165544060 is an abundant number, since it is smaller than the sum of its proper divisors (31077987700).

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

28165544060 is a wasteful number, since it uses less digits than its factorization.

28165544060 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2283085 (or 2283083 counting only the distinct ones).

The product of its (nonzero) digits is 230400, while the sum is 41.

The spelling of 28165544060 in words is "twenty-eight billion, one hundred sixty-five million, five hundred forty-four thousand, sixty".