655513464315556 has 144 divisors (see below), whose sum is σ = 1459436882843520. Its totient is φ = 252149812992000.

The previous prime is 655513464315499. The next prime is 655513464315607.

It is a happy number.

655513464315556 is nontrivially palindromic in base 10.

It is a hoax number, since the sum of its digits (64) coincides with the sum of the digits of its distinct prime factors.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 118078975 + ... + 123505753.

It is an arithmetic number, because the mean of its divisors is an integer number (10134978353080).

Almost surely, 2^{655513464315556} 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 655513464315556, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (729718441421760).

655513464315556 is an abundant number, since it is smaller than the sum of its proper divisors (803923418527964).

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

655513464315556 is a wasteful number, since it uses less digits than its factorization.

655513464315556 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5427266 (or 5427253 counting only the distinct ones).

The product of its digits is 486000000, while the sum is 64.

The spelling of 655513464315556 in words is "six hundred fifty-five trillion, five hundred thirteen billion, four hundred sixty-four million, three hundred fifteen thousand, five hundred fifty-six".