655547745556 has 96 divisors (see below), whose sum is σ = 1322782917120. Its totient is φ = 281135836800.

The previous prime is 655547745529. The next prime is 655547745599.

655547745556 is nontrivially palindromic in base 10.

It is a congruent number.

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, 239162346 + ... + 239165086.

It is an arithmetic number, because the mean of its divisors is an integer number (13778988720).

Almost surely, 2^655547745556 is an apocalyptic number.

It is an amenable number.

655547745556 is an abundant number, since it is smaller than the sum of its proper divisors (667235171564).

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

655547745556 is a wasteful number, since it uses less digits than its factorization.

655547745556 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3845 (or 3843 counting only the distinct ones).

The product of its digits is 441000000, while the sum is 64.

The spelling of 655547745556 in words is "six hundred fifty-five billion, five hundred forty-seven million, seven hundred forty-five thousand, five hundred fifty-six".