66371212 has 6 divisors (see below), whose sum is σ = 116149628. Its totient is φ = 33185604.

The previous prime is 66371209. The next prime is 66371257. The reversal of 66371212 is 21217366.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8296398 + ... + 8296405.

Almost surely, 2^66371212 is an apocalyptic number.

It is an amenable number.

66371212 is a deficient number, since it is larger than the sum of its proper divisors (49778416).

66371212 is a wasteful number, since it uses less digits than its factorization.

66371212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16592807 (or 16592805 counting only the distinct ones).

The product of its digits is 3024, while the sum is 28.

The square root of 66371212 is about 8146.8528893064. The cubic root of 66371212 is about 404.8802409712.

Adding to 66371212 its reverse (21217366), we get a palindrome (87588578).

The spelling of 66371212 in words is "sixty-six million, three hundred seventy-one thousand, two hundred twelve".