6620110564663 has 8 divisors (see below), whose sum is σ = 6657274080080. Its totient is φ = 6583050714240.

The previous prime is 6620110564633. The next prime is 6620110564733. The reversal of 6620110564663 is 3664650110266.

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 6620110564663 - 2²⁵ = 6620077010231 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 (6620110564633) by changing a digit.

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 in 7 ways as a sum of consecutive naturals, for example, 25788168 + ... + 26043613.

It is an arithmetic number, because the mean of its divisors is an integer number (832159260010).

Almost surely, 2^{6620110564663} is an apocalyptic number.

6620110564663 is a deficient number, since it is larger than the sum of its proper divisors (37163515417).

6620110564663 is a wasteful number, since it uses less digits than its factorization.

6620110564663 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 51832497.

The product of its (nonzero) digits is 933120, while the sum is 46.

The spelling of 6620110564663 in words is "six trillion, six hundred twenty billion, one hundred ten million, five hundred sixty-four thousand, six hundred sixty-three".