646602002612250 has 96 divisors (see below), whose sum is σ = 1629739858488768. Its totient is φ = 170753148103200.

The previous prime is 646602002612227. The next prime is 646602002612309. The reversal of 646602002612250 is 52216200206646.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 32675544 + ... + 48589043.

It is an arithmetic number, because the mean of its divisors is an integer number (16976456859258).

Almost surely, 2^{646602002612250} is an apocalyptic number.

646602002612250 is an abundant number, since it is smaller than the sum of its proper divisors (983137855876518).

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

646602002612250 is a wasteful number, since it uses less digits than its factorization.

646602002612250 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 81264813 (or 81264700 counting only the distinct ones).

The product of its (nonzero) digits is 414720, while the sum is 42.

Adding to 646602002612250 its reverse (52216200206646), we get a palindrome (698818202818896).

The spelling of 646602002612250 in words is "six hundred forty-six trillion, six hundred two billion, two million, six hundred twelve thousand, two hundred fifty".