28171466166 has 32 divisors (see below), whose sum is σ = 56477737728. Its totient is φ = 9368051040.

The previous prime is 28171466153. The next prime is 28171466209. The reversal of 28171466166 is 66166417182.

It is a happy number.

It is a super-3 number, since 3×28171466166³ (a number of 32 digits) contains 333 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5007231 + ... + 5012853.

It is an arithmetic number, because the mean of its divisors is an integer number (1764929304).

Almost surely, 2^28171466166 is an apocalyptic number.

28171466166 is an abundant number, since it is smaller than the sum of its proper divisors (28306271562).

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

28171466166 is a wasteful number, since it uses less digits than its factorization.

28171466166 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7476.

The product of its digits is 580608, while the sum is 48.

The spelling of 28171466166 in words is "twenty-eight billion, one hundred seventy-one million, four hundred sixty-six thousand, one hundred sixty-six".