6214641663 has 4 divisors (see below), whose sum is σ = 8286188888. Its totient is φ = 4143094440.

The previous prime is 6214641661. The next prime is 6214641673. The reversal of 6214641663 is 3661464126.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 6214641663 - 2¹ = 6214641661 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 (6214641661) 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, 1035773608 + ... + 1035773613.

It is an arithmetic number, because the mean of its divisors is an integer number (2071547222).

Almost surely, 2^6214641663 is an apocalyptic number.

6214641663 is a deficient number, since it is larger than the sum of its proper divisors (2071547225).

6214641663 is a wasteful number, since it uses less digits than its factorization.

6214641663 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2071547224.

The product of its digits is 124416, while the sum is 39.

The square root of 6214641663 is about 78832.9985665901. The cubic root of 6214641663 is about 1838.5355454276.

The spelling of 6214641663 in words is "six billion, two hundred fourteen million, six hundred forty-one thousand, six hundred sixty-three".