6422116655623 has 4 divisors (see below), whose sum is σ = 6422122984608. Its totient is φ = 6422110326640.

The previous prime is 6422116655569. The next prime is 6422116655639. The reversal of 6422116655623 is 3265566112246.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-6422116655623 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 (6422116655683) 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, 1260598 + ... + 3799123.

It is an arithmetic number, because the mean of its divisors is an integer number (1605530746152).

Almost surely, 2^{6422116655623} is an apocalyptic number.

6422116655623 is a deficient number, since it is larger than the sum of its proper divisors (6328985).

6422116655623 is a wasteful number, since it uses less digits than its factorization.

6422116655623 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6328984.

The product of its digits is 3110400, while the sum is 49.

The spelling of 6422116655623 in words is "six trillion, four hundred twenty-two billion, one hundred sixteen million, six hundred fifty-five thousand, six hundred twenty-three".