66466514 has 4 divisors (see below), whose sum is σ = 99699774. Its totient is φ = 33233256.

The previous prime is 66466513. The next prime is 66466523. The reversal of 66466514 is 41566466.

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

It can be written as a sum of positive squares in only one way, i.e., 61701025 + 4765489 = 7855^2 + 2183^2 .

It is not an unprimeable number, because it can be changed into a prime (66466513) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 16616627 + ... + 16616630.

Almost surely, 2^66466514 is an apocalyptic number.

66466514 is a deficient number, since it is larger than the sum of its proper divisors (33233260).

66466514 is a wasteful number, since it uses less digits than its factorization.

66466514 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33233259.

The product of its digits is 103680, while the sum is 38.

The square root of 66466514 is about 8152.6997982264. The cubic root of 66466514 is about 405.0739366106.

The spelling of 66466514 in words is "sixty-six million, four hundred sixty-six thousand, five hundred fourteen".