646235316010 has 16 divisors (see below), whose sum is σ = 1185171184296. Its totient is φ = 253616878528.

The previous prime is 646235315983. The next prime is 646235316011. The reversal of 646235316010 is 10613532646.

646235316010 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 510191632729 + 136043683281 = 714277^2 + 368841^2 .

It is not an unprimeable number, because it can be changed into a prime (646235316011) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 609655429 + ... + 609656488.

Almost surely, 2^646235316010 is an apocalyptic number.

646235316010 is a deficient number, since it is larger than the sum of its proper divisors (538935868286).

646235316010 is a wasteful number, since it uses less digits than its factorization.

646235316010 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1219311977.

The product of its (nonzero) digits is 77760, while the sum is 37.

Adding to 646235316010 its reverse (10613532646), we get a palindrome (656848848656).

The spelling of 646235316010 in words is "six hundred forty-six billion, two hundred thirty-five million, three hundred sixteen thousand, ten".