646224080260 has 24 divisors (see below), whose sum is σ = 1480440620736. Its totient is φ = 234990574560.

The previous prime is 646224080251. The next prime is 646224080287. The reversal of 646224080260 is 62080422646.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1468690872 + ... + 1468691311.

It is an arithmetic number, because the mean of its divisors is an integer number (61685025864).

Almost surely, 2^646224080260 is an apocalyptic number.

It is an amenable number.

646224080260 is an abundant number, since it is smaller than the sum of its proper divisors (834216540476).

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

646224080260 is a wasteful number, since it uses less digits than its factorization.

646224080260 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2937382203 (or 2937382201 counting only the distinct ones).

The product of its (nonzero) digits is 221184, while the sum is 40.

The spelling of 646224080260 in words is "six hundred forty-six billion, two hundred twenty-four million, eighty thousand, two hundred sixty".