27470444166 has 80 divisors (see below), whose sum is σ = 67439191248. Its totient is φ = 8288524800.

The previous prime is 27470444149. The next prime is 27470444173. The reversal of 27470444166 is 66144407472.

It is a happy number.

27470444166 is a `hidden beast` number, since 2 + 7 + 47 + 0 + 444 + 166 = 666.

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 39 ways as a sum of consecutive naturals, for example, 382126 + ... + 448286.

Almost surely, 2^27470444166 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 27470444166, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (33719595624).

27470444166 is an abundant number, since it is smaller than the sum of its proper divisors (39968747082).

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

27470444166 is a wasteful number, since it uses less digits than its factorization.

27470444166 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 66419 (or 66410 counting only the distinct ones).

The product of its (nonzero) digits is 903168, while the sum is 45.

The spelling of 27470444166 in words is "twenty-seven billion, four hundred seventy million, four hundred forty-four thousand, one hundred sixty-six".