66287127 has 32 divisors (see below), whose sum is σ = 96468480. Its totient is φ = 40360320.

The previous prime is 66287113. The next prime is 66287129. The reversal of 66287127 is 72178266.

It is not a de Polignac number, because 66287127 - 2¹² = 66283031 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (66287129) 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 31 ways as a sum of consecutive naturals, for example, 314052 + ... + 314262.

It is an arithmetic number, because the mean of its divisors is an integer number (3014640).

Almost surely, 2^66287127 is an apocalyptic number.

66287127 is a deficient number, since it is larger than the sum of its proper divisors (30181353).

66287127 is a wasteful number, since it uses less digits than its factorization.

66287127 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 423.

The product of its digits is 56448, while the sum is 39.

The square root of 66287127 is about 8141.6906720902. The cubic root of 66287127 is about 404.7091891905.

The spelling of 66287127 in words is "sixty-six million, two hundred eighty-seven thousand, one hundred twenty-seven".