646103016 has 48 divisors (see below), whose sum is σ = 1884469860. Its totient is φ = 198800640.

The previous prime is 646103009. The next prime is 646103027. The reversal of 646103016 is 610301646.

646103016 is a `hidden beast` number, since 6 + 4 + 610 + 30 + 16 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 633528900 + 12574116 = 25170^2 + 3546^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 344205 + ... + 346076.

Almost surely, 2^646103016 is an apocalyptic number.

It is an amenable number.

646103016 is an abundant number, since it is smaller than the sum of its proper divisors (1238366844).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

646103016 is a wasteful number, since it uses less digits than its factorization.

646103016 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 690306 (or 690299 counting only the distinct ones).

The product of its (nonzero) digits is 2592, while the sum is 27.

The square root of 646103016 is about 25418.5565286465. The cubic root of 646103016 is about 864.5044957447.

The spelling of 646103016 in words is "six hundred forty-six million, one hundred three thousand, sixteen".