66474207 has 6 divisors (see below), whose sum is σ = 96018312. Its totient is φ = 44316132.

The previous prime is 66474193. The next prime is 66474211. The reversal of 66474207 is 70247466.

66474207 is a `hidden beast` number, since 6 + 647 + 4 + 2 + 0 + 7 = 666.

It is not a de Polignac number, because 66474207 - 2¹² = 66470111 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (66474227) 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 5 ways as a sum of consecutive naturals, for example, 3693003 + ... + 3693020.

It is an arithmetic number, because the mean of its divisors is an integer number (16003052).

Almost surely, 2^66474207 is an apocalyptic number.

66474207 is a deficient number, since it is larger than the sum of its proper divisors (29544105).

66474207 is a wasteful number, since it uses less digits than its factorization.

66474207 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7386029 (or 7386026 counting only the distinct ones).

The product of its (nonzero) digits is 56448, while the sum is 36.

The square root of 66474207 is about 8153.1715914729. The cubic root of 66474207 is about 405.0895640967.

The spelling of 66474207 in words is "sixty-six million, four hundred seventy-four thousand, two hundred seven".