66248860863 has 8 divisors (see below), whose sum is σ = 88333020976. Its totient is φ = 44165304000.

The previous prime is 66248860801. The next prime is 66248860877. The reversal of 66248860863 is 36806884266.

It is a happy number.

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

It is not a de Polignac number, because 66248860863 - 2⁸ = 66248860607 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 (66248860663) 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, 287043 + ... + 463563.

It is an arithmetic number, because the mean of its divisors is an integer number (11041627622).

Almost surely, 2^66248860863 is an apocalyptic number.

66248860863 is a deficient number, since it is larger than the sum of its proper divisors (22084160113).

66248860863 is a wasteful number, since it uses less digits than its factorization.

66248860863 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 301625.

The product of its (nonzero) digits is 15925248, while the sum is 57.

The spelling of 66248860863 in words is "sixty-six billion, two hundred forty-eight million, eight hundred sixty thousand, eight hundred sixty-three".