6644214117 has 12 divisors (see below), whose sum is σ = 9600424704. Its totient is φ = 4427986920.

The previous prime is 6644214107. The next prime is 6644214131. The reversal of 6644214117 is 7114124466.

It is a happy number.

6644214117 is a `hidden beast` number, since 6 + 644 + 2 + 1 + 4 + 1 + 1 + 7 = 666.

It is not a de Polignac number, because 6644214117 - 2⁸ = 6644213861 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6644214107) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 95493 + ... + 149690.

It is an arithmetic number, because the mean of its divisors is an integer number (800035392).

Almost surely, 2^6644214117 is an apocalyptic number.

It is an amenable number.

6644214117 is a deficient number, since it is larger than the sum of its proper divisors (2956210587).

6644214117 is a wasteful number, since it uses less digits than its factorization.

6644214117 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 248200 (or 248197 counting only the distinct ones).

The product of its digits is 32256, while the sum is 36.

The square root of 6644214117 is about 81512.0489068947. The cubic root of 6644214117 is about 1879.9568155351.

The spelling of 6644214117 in words is "six billion, six hundred forty-four million, two hundred fourteen thousand, one hundred seventeen".