66047614 has 4 divisors (see below), whose sum is σ = 99071424. Its totient is φ = 33023806.

The previous prime is 66047561. The next prime is 66047621. The reversal of 66047614 is 41674066.

It is a happy number.

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

It is a self number, because there is not a number n which added to its sum of digits gives 66047614.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 16511902 + ... + 16511905.

It is an arithmetic number, because the mean of its divisors is an integer number (24767856).

Almost surely, 2^66047614 is an apocalyptic number.

66047614 is a deficient number, since it is larger than the sum of its proper divisors (33023810).

66047614 is a wasteful number, since it uses less digits than its factorization.

66047614 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33023809.

The product of its (nonzero) digits is 24192, while the sum is 34.

The square root of 66047614 is about 8126.9683154298. The cubic root of 66047614 is about 404.2211603192.

The spelling of 66047614 in words is "sixty-six million, forty-seven thousand, six hundred fourteen".