208844648664 has 16 divisors (see below), whose sum is σ = 522111621720. Its totient is φ = 69614882880.

The previous prime is 208844648653. The next prime is 208844648671. The reversal of 208844648664 is 466846448802.

It is a happy number.

208844648664 is digitally balanced in base 3, 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 = 208844648598 and 208844648607.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4350930157 + ... + 4350930204.

Almost surely, 2^208844648664 is an apocalyptic number.

208844648664 is a gapful number since it is divisible by the number (24) formed by its first and last digit.

It is an amenable number.

208844648664 is an abundant number, since it is smaller than the sum of its proper divisors (313266973056).

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

208844648664 is a wasteful number, since it uses less digits than its factorization.

208844648664 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8701860370 (or 8701860366 counting only the distinct ones).

The product of its (nonzero) digits is 56623104, while the sum is 60.

The spelling of 208844648664 in words is "two hundred eight billion, eight hundred forty-four million, six hundred forty-eight thousand, six hundred sixty-four".