66246012 has 60 divisors (see below), whose sum is σ = 197926960. Its totient is φ = 18926784.

The previous prime is 66246007. The next prime is 66246013. The reversal of 66246012 is 21064266.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (66246013) 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 19 ways as a sum of consecutive naturals, for example, 12337 + ... + 16872.

Almost surely, 2^66246012 is an apocalyptic number.

It is an amenable number.

66246012 is an abundant number, since it is smaller than the sum of its proper divisors (131680948).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

66246012 is a wasteful number, since it uses less digits than its factorization.

66246012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29232 (or 29221 counting only the distinct ones).

The product of its (nonzero) digits is 3456, while the sum is 27.

The square root of 66246012 is about 8139.1653134704. The cubic root of 66246012 is about 404.6254974265.

The spelling of 66246012 in words is "sixty-six million, two hundred forty-six thousand, twelve".