66246412 has 6 divisors (see below), whose sum is σ = 115931228. Its totient is φ = 33123204.

The previous prime is 66246409. The next prime is 66246419. The reversal of 66246412 is 21464266.

It is not an unprimeable number, because it can be changed into a prime (66246419) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8280798 + ... + 8280805.

Almost surely, 2^66246412 is an apocalyptic number.

It is an amenable number.

66246412 is a deficient number, since it is larger than the sum of its proper divisors (49684816).

66246412 is a wasteful number, since it uses less digits than its factorization.

66246412 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16561607 (or 16561605 counting only the distinct ones).

The product of its digits is 13824, while the sum is 31.

The square root of 66246412 is about 8139.1898859776. The cubic root of 66246412 is about 404.6263118145.

It can be divided in two parts, 662 and 46412, that added together give a palindrome (47074).

The spelling of 66246412 in words is "sixty-six million, two hundred forty-six thousand, four hundred twelve".