655445544556 has 96 divisors (see below), whose sum is σ = 1455280888320. Its totient is φ = 254096409600.

The previous prime is 655445544469. The next prime is 655445544571.

655445544556 is nontrivially palindromic in base 10.

655445544556 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×655445544556² (a number of 24 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 655445544556.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 675715 + ... + 1329466.

It is an arithmetic number, because the mean of its divisors is an integer number (15159175920).

Almost surely, 2^655445544556 is an apocalyptic number.

It is an amenable number.

655445544556 is an abundant number, since it is smaller than the sum of its proper divisors (799835343764).

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

655445544556 is a wasteful number, since it uses less digits than its factorization.

655445544556 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2005255 (or 2005253 counting only the distinct ones).

The product of its digits is 144000000, while the sum is 58.

The spelling of 655445544556 in words is "six hundred fifty-five billion, four hundred forty-five million, five hundred forty-four thousand, five hundred fifty-six".