27974465166 has 32 divisors (see below), whose sum is σ = 56672271360. Its totient is φ = 9204328224.

The previous prime is 27974465119. The next prime is 27974465171. The reversal of 27974465166 is 66156447972.

It is a congruent number.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 2902231 + ... + 2911853.

It is an arithmetic number, because the mean of its divisors is an integer number (1771008480).

Almost surely, 2^27974465166 is an apocalyptic number.

27974465166 is an abundant number, since it is smaller than the sum of its proper divisors (28697806194).

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

27974465166 is a wasteful number, since it uses less digits than its factorization.

27974465166 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15840.

The product of its digits is 15240960, while the sum is 57.

The spelling of 27974465166 in words is "twenty-seven billion, nine hundred seventy-four million, four hundred sixty-five thousand, one hundred sixty-six".