646310616 has 64 divisors (see below), whose sum is σ = 1876903680. Its totient is φ = 181630080.

The previous prime is 646310611. The next prime is 646310627. The reversal of 646310616 is 616013646.

646310616 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (646310611) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 21286 + ... + 41781.

It is an arithmetic number, because the mean of its divisors is an integer number (29326620).

Almost surely, 2^646310616 is an apocalyptic number.

It is an amenable number.

646310616 is an abundant number, since it is smaller than the sum of its proper divisors (1230593064).

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

646310616 is a wasteful number, since it uses less digits than its factorization.

646310616 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 63144 (or 63140 counting only the distinct ones).

The product of its (nonzero) digits is 15552, while the sum is 33.

The square root of 646310616 is about 25422.6398314573. The cubic root of 646310616 is about 864.5970774281.

The spelling of 646310616 in words is "six hundred forty-six million, three hundred ten thousand, six hundred sixteen".