66173014 has 4 divisors (see below), whose sum is σ = 99259524. Its totient is φ = 33086506.

The previous prime is 66173011. The next prime is 66173033. The reversal of 66173014 is 41037166.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (66173011) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 16543252 + ... + 16543255.

It is an arithmetic number, because the mean of its divisors is an integer number (24814881).

Almost surely, 2^66173014 is an apocalyptic number.

66173014 is a deficient number, since it is larger than the sum of its proper divisors (33086510).

66173014 is a wasteful number, since it uses less digits than its factorization.

66173014 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33086509.

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

The square root of 66173014 is about 8134.6797109659. The cubic root of 66173014 is about 404.4768207644.

The spelling of 66173014 in words is "sixty-six million, one hundred seventy-three thousand, fourteen".