66738124 has 12 divisors (see below), whose sum is σ = 123661944. Its totient is φ = 31406144.

The previous prime is 66738109. The next prime is 66738131. The reversal of 66738124 is 42183766.

It is an unprimeable number.

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, 490654 + ... + 490789.

It is an arithmetic number, because the mean of its divisors is an integer number (10305162).

Almost surely, 2^66738124 is an apocalyptic number.

It is an amenable number.

66738124 is a deficient number, since it is larger than the sum of its proper divisors (56923820).

66738124 is a wasteful number, since it uses less digits than its factorization.

66738124 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 981464 (or 981462 counting only the distinct ones).

The product of its digits is 48384, while the sum is 37.

The square root of 66738124 is about 8169.3404874567. The cubic root of 66738124 is about 405.6249539531.

The spelling of 66738124 in words is "sixty-six million, seven hundred thirty-eight thousand, one hundred twenty-four".