66245081183 has 8 divisors (see below), whose sum is σ = 69549387648. Its totient is φ = 62976115224.

The previous prime is 66245081173. The next prime is 66245081257. The reversal of 66245081183 is 38118054266.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 66245081183 - 2⁸ = 66245080927 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (66245081173) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8831285 + ... + 8838782.

It is an arithmetic number, because the mean of its divisors is an integer number (8693673456).

Almost surely, 2^66245081183 is an apocalyptic number.

66245081183 is a deficient number, since it is larger than the sum of its proper divisors (3304306465).

66245081183 is a wasteful number, since it uses less digits than its factorization.

66245081183 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17670253.

The product of its (nonzero) digits is 276480, while the sum is 44.

The spelling of 66245081183 in words is "sixty-six billion, two hundred forty-five million, eighty-one thousand, one hundred eighty-three".