27542758066 has 8 divisors (see below), whose sum is σ = 41315596524. Its totient is φ = 13770892560.

The previous prime is 27542758049. The next prime is 27542758069. The reversal of 27542758066 is 66085724572.

It can be written as a sum of positive squares in 2 ways, for example, as 25369799841 + 2172958225 = 159279^2 + 46615^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not an unprimeable number, because it can be changed into a prime (27542758069) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 167785 + ... + 288508.

Almost surely, 2^27542758066 is an apocalyptic number.

27542758066 is a deficient number, since it is larger than the sum of its proper divisors (13772838458).

27542758066 is a wasteful number, since it uses less digits than its factorization.

27542758066 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 486476.

The product of its (nonzero) digits is 5644800, while the sum is 52.

The spelling of 27542758066 in words is "twenty-seven billion, five hundred forty-two million, seven hundred fifty-eight thousand, sixty-six".