646235316005 has 16 divisors (see below), whose sum is σ = 777772243200. Its totient is φ = 515463912000.

The previous prime is 646235315983. The next prime is 646235316011. The reversal of 646235316005 is 500613532646.

646235316005 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 646235316005 - 2⁸ = 646235315749 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2185331 + ... + 2463359.

It is an arithmetic number, because the mean of its divisors is an integer number (48610765200).

Almost surely, 2^646235316005 is an apocalyptic number.

It is an amenable number.

646235316005 is a deficient number, since it is larger than the sum of its proper divisors (131536927195).

646235316005 is a wasteful number, since it uses less digits than its factorization.

646235316005 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 279404.

The product of its (nonzero) digits is 388800, while the sum is 41.

The spelling of 646235316005 in words is "six hundred forty-six billion, two hundred thirty-five million, three hundred sixteen thousand, five".