6623668600279 has 4 divisors (see below), whose sum is σ = 6624208482840. Its totient is φ = 6623128717720.

The previous prime is 6623668600267. The next prime is 6623668600309. The reversal of 6623668600279 is 9720068663266.

It is a happy number.

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 6623668600279 - 2¹⁹ = 6623668075991 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 (6623668640279) 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, 269922877 + ... + 269947414.

It is an arithmetic number, because the mean of its divisors is an integer number (1656052120710).

Almost surely, 2^{6623668600279} is an apocalyptic number.

6623668600279 is a deficient number, since it is larger than the sum of its proper divisors (539882561).

6623668600279 is a wasteful number, since it uses less digits than its factorization.

6623668600279 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 539882560.

The product of its (nonzero) digits is 47029248, while the sum is 61.

The spelling of 6623668600279 in words is "six trillion, six hundred twenty-three billion, six hundred sixty-eight million, six hundred thousand, two hundred seventy-nine".