655005555056 has 40 divisors (see below), whose sum is σ = 1272787685184. Its totient is φ = 326544894720.

The previous prime is 655005555053. The next prime is 655005555073. The reversal of 655005555056 is 650555500556.

It is a self number, because there is not a number n which added to its sum of digits gives 655005555056.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (655005555053) 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, 16628921 + ... + 16668263.

Almost surely, 2^655005555056 is an apocalyptic number.

It is an amenable number.

655005555056 is a deficient number, since it is larger than the sum of its proper divisors (617782130128).

655005555056 is a wasteful number, since it uses less digits than its factorization.

655005555056 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 42369 (or 42363 counting only the distinct ones).

The product of its (nonzero) digits is 2812500, while the sum is 47.

The spelling of 655005555056 in words is "six hundred fifty-five billion, five million, five hundred fifty-five thousand, fifty-six".