66143614 has 8 divisors (see below), whose sum is σ = 99265320. Its totient is φ = 33055176.

The previous prime is 66143599. The next prime is 66143641. The reversal of 66143614 is 41634166.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2544 + ... + 11779.

It is an arithmetic number, because the mean of its divisors is an integer number (12408165).

Almost surely, 2^66143614 is an apocalyptic number.

66143614 is a deficient number, since it is larger than the sum of its proper divisors (33121706).

66143614 is a wasteful number, since it uses less digits than its factorization.

66143614 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16634.

The product of its digits is 10368, while the sum is 31.

The square root of 66143614 is about 8132.8724322960. The cubic root of 66143614 is about 404.4169102392.

The spelling of 66143614 in words is "sixty-six million, one hundred forty-three thousand, six hundred fourteen".