28765310166 has 48 divisors (see below), whose sum is σ = 65411970624. Its totient is φ = 9472900104.

The previous prime is 28765310159. The next prime is 28765310269. The reversal of 28765310166 is 66101356782.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 316216 + ... + 396891.

It is an arithmetic number, because the mean of its divisors is an integer number (1362749388).

Almost surely, 2^28765310166 is an apocalyptic number.

28765310166 is an abundant number, since it is smaller than the sum of its proper divisors (36646660458).

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

28765310166 is an equidigital number, since it uses as much as digits as its factorization.

28765310166 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 713207 (or 713195 counting only the distinct ones).

The product of its (nonzero) digits is 362880, while the sum is 45.

The spelling of 28765310166 in words is "twenty-eight billion, seven hundred sixty-five million, three hundred ten thousand, one hundred sixty-six".