6416638016 has 28 divisors (see below), whose sum is σ = 12759659520. Its totient is φ = 3201605760.

The previous prime is 6416638009. The next prime is 6416638031. The reversal of 6416638016 is 6108366146.

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, 74000 + ... + 135311.

Almost surely, 2^6416638016 is an apocalyptic number.

It is an amenable number.

6416638016 is a deficient number, since it is larger than the sum of its proper divisors (6343021504).

6416638016 is a wasteful number, since it uses less digits than its factorization.

6416638016 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 209802 (or 209792 counting only the distinct ones).

The product of its (nonzero) digits is 124416, while the sum is 41.

The square root of 6416638016 is about 80103.9201038251. The cubic root of 6416638016 is about 1858.2430335248.

The spelling of 6416638016 in words is "six billion, four hundred sixteen million, six hundred thirty-eight thousand, sixteen".