66741236 has 12 divisors (see below), whose sum is σ = 117391428. Its totient is φ = 33200832.

The previous prime is 66741223. The next prime is 66741251. The reversal of 66741236 is 63214766.

It can be written as a sum of positive squares in 2 ways, for example, as 66259600 + 481636 = 8140^2 + 694^2 .

It is a junction number, because it is equal to n+sod(n) for n = 66741196 and 66741205.

It is a congruent number.

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, 41561 + ... + 43136.

It is an arithmetic number, because the mean of its divisors is an integer number (9782619).

Almost surely, 2^66741236 is an apocalyptic number.

It is an amenable number.

66741236 is a deficient number, since it is larger than the sum of its proper divisors (50650192).

66741236 is a wasteful number, since it uses less digits than its factorization.

66741236 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 84898 (or 84896 counting only the distinct ones).

The product of its digits is 36288, while the sum is 35.

The square root of 66741236 is about 8169.5309534881. The cubic root of 66741236 is about 405.6312586216.

The spelling of 66741236 in words is "sixty-six million, seven hundred forty-one thousand, two hundred thirty-six".