66308002663 has 8 divisors (see below), whose sum is σ = 79769025920. Its totient is φ = 53844092280.

The previous prime is 66308002633. The next prime is 66308002669. The reversal of 66308002663 is 36620080366.

It is a happy number.

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 66308002663 - 2²⁵ = 66274448231 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 (66308002669) 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, 249278073 + ... + 249278338.

It is an arithmetic number, because the mean of its divisors is an integer number (9971128240).

Almost surely, 2^66308002663 is an apocalyptic number.

66308002663 is a deficient number, since it is larger than the sum of its proper divisors (13461023257).

66308002663 is a wasteful number, since it uses less digits than its factorization.

66308002663 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 498556437.

The product of its (nonzero) digits is 186624, while the sum is 40.

The spelling of 66308002663 in words is "sixty-six billion, three hundred eight million, two thousand, six hundred sixty-three".