28108166603 has 8 divisors (see below), whose sum is σ = 30665660400. Its totient is φ = 25551040480.

The previous prime is 28108166573. The next prime is 28108166657. The reversal of 28108166603 is 30666180182.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 28108166603 - 2⁶ = 28108166539 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (28108168603) 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, 82301 + ... + 250977.

It is an arithmetic number, because the mean of its divisors is an integer number (3833207550).

Almost surely, 2^28108166603 is an apocalyptic number.

28108166603 is a deficient number, since it is larger than the sum of its proper divisors (2557493797).

28108166603 is a wasteful number, since it uses less digits than its factorization.

28108166603 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 183837.

The product of its (nonzero) digits is 82944, while the sum is 41.

The spelling of 28108166603 in words is "twenty-eight billion, one hundred eight million, one hundred sixty-six thousand, six hundred three".