66127274 has 4 divisors (see below), whose sum is σ = 99190914. Its totient is φ = 33063636.

The previous prime is 66127253. The next prime is 66127283. The reversal of 66127274 is 47272166.

66127274 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 47272166 = 2 ⋅23636083.

It can be written as a sum of positive squares in only one way, i.e., 47265625 + 18861649 = 6875^2 + 4343^2 .

It is an unprimeable number.

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 as a sum of consecutive naturals, namely, 16531817 + ... + 16531820.

Almost surely, 2^66127274 is an apocalyptic number.

66127274 is a deficient number, since it is larger than the sum of its proper divisors (33063640).

66127274 is a wasteful number, since it uses less digits than its factorization.

66127274 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33063639.

The product of its digits is 28224, while the sum is 35.

The square root of 66127274 is about 8131.8678051232. The cubic root of 66127274 is about 404.3836053533.

The spelling of 66127274 in words is "sixty-six million, one hundred twenty-seven thousand, two hundred seventy-four".