66233658327 has 4 divisors (see below), whose sum is σ = 88311544440. Its totient is φ = 44155772216.

The previous prime is 66233658319. The next prime is 66233658341. The reversal of 66233658327 is 72385633266.

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

It is a cyclic number.

It is not a de Polignac number, because 66233658327 - 2³ = 66233658319 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 66233658327.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (66233658307) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 11038943052 + ... + 11038943057.

It is an arithmetic number, because the mean of its divisors is an integer number (22077886110).

Almost surely, 2^66233658327 is an apocalyptic number.

66233658327 is a deficient number, since it is larger than the sum of its proper divisors (22077886113).

66233658327 is a wasteful number, since it uses less digits than its factorization.

66233658327 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22077886112.

The product of its digits is 6531840, while the sum is 51.

The spelling of 66233658327 in words is "sixty-six billion, two hundred thirty-three million, six hundred fifty-eight thousand, three hundred twenty-seven".