64642602200444 has 24 divisors (see below), whose sum is σ = 119642830742400. Its totient is φ = 30475060645680.

The previous prime is 64642602200389. The next prime is 64642602200459. The reversal of 64642602200444 is 44400220624646.

It is a junction number, because it is equal to n+sod(n) for n = 64642602200395 and 64642602200404.

It is a congruent number.

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, 2015530304 + ... + 2015562375.

It is an arithmetic number, because the mean of its divisors is an integer number (4985117947600).

Almost surely, 2^{64642602200444} is an apocalyptic number.

It is an amenable number.

64642602200444 is a deficient number, since it is larger than the sum of its proper divisors (55000228541956).

64642602200444 is a wasteful number, since it uses less digits than its factorization.

64642602200444 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4031092913 (or 4031092911 counting only the distinct ones).

The product of its (nonzero) digits is 1769472, while the sum is 44.

The spelling of 64642602200444 in words is "sixty-four trillion, six hundred forty-two billion, six hundred two million, two hundred thousand, four hundred forty-four".