66320614 has 8 divisors (see below), whose sum is σ = 100393920. Its totient is φ = 32855976.

The previous prime is 66320599. The next prime is 66320623. The reversal of 66320614 is 41602366.

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, 151894 + ... + 152329.

It is an arithmetic number, because the mean of its divisors is an integer number (12549240).

Almost surely, 2^66320614 is an apocalyptic number.

66320614 is a deficient number, since it is larger than the sum of its proper divisors (34073306).

66320614 is a wasteful number, since it uses less digits than its factorization.

66320614 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 304334.

The product of its (nonzero) digits is 5184, while the sum is 28.

The square root of 66320614 is about 8143.7469263233. The cubic root of 66320614 is about 404.7773281878. Note that the first 3 decimals are identical.

The spelling of 66320614 in words is "sixty-six million, three hundred twenty thousand, six hundred fourteen".