66234758606 has 4 divisors (see below), whose sum is σ = 99352137912. Its totient is φ = 33117379302.

The previous prime is 66234758587. The next prime is 66234758609. The reversal of 66234758606 is 60685743266.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 60685743266 = 2 ⋅30342871633.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (66234758609) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 16558689650 + ... + 16558689653.

It is an arithmetic number, because the mean of its divisors is an integer number (24838034478).

Almost surely, 2^66234758606 is an apocalyptic number.

66234758606 is a deficient number, since it is larger than the sum of its proper divisors (33117379306).

66234758606 is a wasteful number, since it uses less digits than its factorization.

66234758606 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33117379305.

The product of its (nonzero) digits is 8709120, while the sum is 53.

The spelling of 66234758606 in words is "sixty-six billion, two hundred thirty-four million, seven hundred fifty-eight thousand, six hundred six".