66234232166 has 4 divisors (see below), whose sum is σ = 99351348252. Its totient is φ = 33117116082.

The previous prime is 66234232159. The next prime is 66234232187. The reversal of 66234232166 is 66123243266.

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

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

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, 16558558040 + ... + 16558558043.

It is an arithmetic number, because the mean of its divisors is an integer number (24837837063).

Almost surely, 2^66234232166 is an apocalyptic number.

66234232166 is a deficient number, since it is larger than the sum of its proper divisors (33117116086).

66234232166 is a wasteful number, since it uses less digits than its factorization.

66234232166 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33117116085.

The product of its digits is 373248, while the sum is 41.

The spelling of 66234232166 in words is "sixty-six billion, two hundred thirty-four million, two hundred thirty-two thousand, one hundred sixty-six".