646120332300 has 36 divisors (see below), whose sum is σ = 1869441495656. Its totient is φ = 172298755200.

The previous prime is 646120332289. The next prime is 646120332337. The reversal of 646120332300 is 3233021646.

It is a super-2 number, since 2×646120332300² (a number of 24 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (30).

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, 1076866921 + ... + 1076867520.

Almost surely, 2^646120332300 is an apocalyptic number.

646120332300 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

646120332300 is an abundant number, since it is smaller than the sum of its proper divisors (1223321163356).

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

646120332300 is a wasteful number, since it uses less digits than its factorization.

646120332300 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2153734458 (or 2153734451 counting only the distinct ones).

The product of its (nonzero) digits is 15552, while the sum is 30.

Adding to 646120332300 its reverse (3233021646), we get a palindrome (649353353946).

The spelling of 646120332300 in words is "six hundred forty-six billion, one hundred twenty million, three hundred thirty-two thousand, three hundred".