646044422244 has 24 divisors (see below), whose sum is σ = 1623393676800. Its totient is φ = 198782899104.

The previous prime is 646044422213. The next prime is 646044422251. The reversal of 646044422244 is 442224440646.

646044422244 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a junction number, because it is equal to n+sod(n) for n = 646044422196 and 646044422205.

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, 2070655044 + ... + 2070655355.

It is an arithmetic number, because the mean of its divisors is an integer number (67641403200).

Almost surely, 2^646044422244 is an apocalyptic number.

It is an amenable number.

646044422244 is an abundant number, since it is smaller than the sum of its proper divisors (977349254556).

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

646044422244 is a wasteful number, since it uses less digits than its factorization.

646044422244 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4141310419 (or 4141310417 counting only the distinct ones).

The product of its (nonzero) digits is 1179648, while the sum is 42.

The spelling of 646044422244 in words is "six hundred forty-six billion, forty-four million, four hundred twenty-two thousand, two hundred forty-four".