66005123614 has 4 divisors (see below), whose sum is σ = 99007685424. Its totient is φ = 33002561806.

The previous prime is 66005123579. The next prime is 66005123669. The reversal of 66005123614 is 41632150066.

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 66005123614.

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, 16501280902 + ... + 16501280905.

It is an arithmetic number, because the mean of its divisors is an integer number (24751921356).

Almost surely, 2^66005123614 is an apocalyptic number.

66005123614 is a deficient number, since it is larger than the sum of its proper divisors (33002561810).

66005123614 is a wasteful number, since it uses less digits than its factorization.

66005123614 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33002561809.

The product of its (nonzero) digits is 25920, while the sum is 34.

The spelling of 66005123614 in words is "sixty-six billion, five million, one hundred twenty-three thousand, six hundred fourteen".