66189004214 has 4 divisors (see below), whose sum is σ = 99283506324. Its totient is φ = 33094502106.

The previous prime is 66189004207. The next prime is 66189004247. The reversal of 66189004214 is 41240098166.

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

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 16547251052 + ... + 16547251055.

It is an arithmetic number, because the mean of its divisors is an integer number (24820876581).

Almost surely, 2^66189004214 is an apocalyptic number.

66189004214 is a deficient number, since it is larger than the sum of its proper divisors (33094502110).

66189004214 is a wasteful number, since it uses less digits than its factorization.

66189004214 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33094502109.

The product of its (nonzero) digits is 82944, while the sum is 41.

The spelling of 66189004214 in words is "sixty-six billion, one hundred eighty-nine million, four thousand, two hundred fourteen".