646416112 has 20 divisors (see below), whose sum is σ = 1252955520. Its totient is φ = 323072768.

The previous prime is 646416103. The next prime is 646416139. The reversal of 646416112 is 211614646.

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, 39048 + ... + 53080.

It is an arithmetic number, because the mean of its divisors is an integer number (62647776).

Almost surely, 2^646416112 is an apocalyptic number.

It is an amenable number.

646416112 is a deficient number, since it is larger than the sum of its proper divisors (606539408).

646416112 is a wasteful number, since it uses less digits than its factorization.

646416112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16920 (or 16914 counting only the distinct ones).

The product of its digits is 6912, while the sum is 31.

The square root of 646416112 is about 25424.7145903351. The cubic root of 646416112 is about 864.6441170242.

The spelling of 646416112 in words is "six hundred forty-six million, four hundred sixteen thousand, one hundred twelve".