66205614 has 32 divisors (see below), whose sum is σ = 141079680. Its totient is φ = 20652192.

The previous prime is 66205613. The next prime is 66205621. The reversal of 66205614 is 41650266.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (66205613) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5964 + ... + 12960.

It is an arithmetic number, because the mean of its divisors is an integer number (4408740).

Almost surely, 2^66205614 is an apocalyptic number.

66205614 is an abundant number, since it is smaller than the sum of its proper divisors (74874066).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

66205614 is a wasteful number, since it uses less digits than its factorization.

66205614 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7104.

The product of its (nonzero) digits is 8640, while the sum is 30.

The square root of 66205614 is about 8136.6832308994. The cubic root of 66205614 is about 404.5432314194.

The spelling of 66205614 in words is "sixty-six million, two hundred five thousand, six hundred fourteen".