66466707 has 4 divisors (see below), whose sum is σ = 88622280. Its totient is φ = 44311136.

The previous prime is 66466703. The next prime is 66466739. The reversal of 66466707 is 70766466.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 66466707 - 2² = 66466703 is a prime.

It is not an unprimeable number, because it can be changed into a prime (66466703) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 11077782 + ... + 11077787.

It is an arithmetic number, because the mean of its divisors is an integer number (22155570).

Almost surely, 2^66466707 is an apocalyptic number.

66466707 is a deficient number, since it is larger than the sum of its proper divisors (22155573).

66466707 is a wasteful number, since it uses less digits than its factorization.

66466707 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22155572.

The product of its (nonzero) digits is 254016, while the sum is 42.

The square root of 66466707 is about 8152.7116347875. The cubic root of 66466707 is about 405.0743286837.

The spelling of 66466707 in words is "sixty-six million, four hundred sixty-six thousand, seven hundred seven".