655564904448 has 96 divisors (see below), whose sum is σ = 1754199982080. Its totient is φ = 217714728960.

The previous prime is 655564904441. The next prime is 655564904483. The reversal of 655564904448 is 844409465556.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (96).

It is a junction number, because it is equal to n+sod(n) for n = 655564904391 and 655564904400.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (655564904441) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1468161 + ... + 1861887.

It is an arithmetic number, because the mean of its divisors is an integer number (18272916480).

Almost surely, 2^655564904448 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 655564904448, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (877099991040).

655564904448 is an abundant number, since it is smaller than the sum of its proper divisors (1098635077632).

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

655564904448 is a wasteful number, since it uses less digits than its factorization.

655564904448 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 394023 (or 394003 counting only the distinct ones).

The product of its (nonzero) digits is 82944000, while the sum is 60.

The spelling of 655564904448 in words is "six hundred fifty-five billion, five hundred sixty-four million, nine hundred four thousand, four hundred forty-eight".