27943062066 has 24 divisors (see below), whose sum is σ = 63175619520. Its totient is φ = 8909381976.

The previous prime is 27943062047. The next prime is 27943062067. The reversal of 27943062066 is 66026034972.

27943062066 is a `hidden beast` number, since 2 + 7 + 9 + 430 + 6 + 206 + 6 = 666.

It is not an unprimeable number, because it can be changed into a prime (27943062067) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 33747246 + ... + 33748073.

It is an arithmetic number, because the mean of its divisors is an integer number (2632317480).

Almost surely, 2^27943062066 is an apocalyptic number.

27943062066 is an abundant number, since it is smaller than the sum of its proper divisors (35232557454).

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

27943062066 is a wasteful number, since it uses less digits than its factorization.

27943062066 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 67495350 (or 67495347 counting only the distinct ones).

The product of its (nonzero) digits is 653184, while the sum is 45.

The spelling of 27943062066 in words is "twenty-seven billion, nine hundred forty-three million, sixty-two thousand, sixty-six".