28085166103 has 4 divisors (see below), whose sum is σ = 29563332760. Its totient is φ = 26606999448.

The previous prime is 28085166097. The next prime is 28085166199. The reversal of 28085166103 is 30166158082.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 28085166103 - 2¹³ = 28085157911 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28085163103) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 739083300 + ... + 739083337.

It is an arithmetic number, because the mean of its divisors is an integer number (7390833190).

Almost surely, 2^28085166103 is an apocalyptic number.

28085166103 is a deficient number, since it is larger than the sum of its proper divisors (1478166657).

28085166103 is a wasteful number, since it uses less digits than its factorization.

28085166103 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1478166656.

The product of its (nonzero) digits is 69120, while the sum is 40.

The spelling of 28085166103 in words is "twenty-eight billion, eighty-five million, one hundred sixty-six thousand, one hundred three".