66041312 has 24 divisors (see below), whose sum is σ = 130648392. Its totient is φ = 32860800.

The previous prime is 66041309. The next prime is 66041341. The reversal of 66041312 is 21314066.

It is a happy number.

It is a super-2 number, since 2×66041312² = 8722909781362688, which contains 22 as substring.

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, 1862 + ... + 11642.

It is an arithmetic number, because the mean of its divisors is an integer number (5443683).

Almost surely, 2^66041312 is an apocalyptic number.

It is an amenable number.

66041312 is a deficient number, since it is larger than the sum of its proper divisors (64607080).

66041312 is a wasteful number, since it uses less digits than its factorization.

66041312 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10002 (or 9994 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 23.

The square root of 66041312 is about 8126.5805847232. The cubic root of 66041312 is about 404.2083035198.

Adding to 66041312 its reverse (21314066), we get a palindrome (87355378).

The spelling of 66041312 in words is "sixty-six million, forty-one thousand, three hundred twelve".