6640411622 has 8 divisors (see below), whose sum is σ = 10726818816. Its totient is φ = 3064805352.

The previous prime is 6640411601. The next prime is 6640411681. The reversal of 6640411622 is 2261140466.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 127700198 + ... + 127700249.

It is an arithmetic number, because the mean of its divisors is an integer number (1340852352).

Almost surely, 2^6640411622 is an apocalyptic number.

6640411622 is a deficient number, since it is larger than the sum of its proper divisors (4086407194).

6640411622 is a wasteful number, since it uses less digits than its factorization.

6640411622 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 255400462.

The product of its (nonzero) digits is 13824, while the sum is 32.

The square root of 6640411622 is about 81488.7208268727. The cubic root of 6640411622 is about 1879.5981129405.

The spelling of 6640411622 in words is "six billion, six hundred forty million, four hundred eleven thousand, six hundred twenty-two".