5555610665556 has 48 divisors (see below), whose sum is σ = 15292863774720. Its totient is φ = 1536113547360.

The previous prime is 5555610665513. The next prime is 5555610665599. The reversal of 5555610665556 is 6555660165555.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (5555610665513) and next prime (5555610665599).

It is a self number, because there is not a number n which added to its sum of digits gives 5555610665556.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1066742916 + ... + 1066748123.

It is an arithmetic number, because the mean of its divisors is an integer number (318601328640).

Almost surely, 2^{5555610665556} is an apocalyptic number.

It is an amenable number.

5555610665556 is an abundant number, since it is smaller than the sum of its proper divisors (9737253109164).

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

5555610665556 is a wasteful number, since it uses less digits than its factorization.

5555610665556 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2133491084 (or 2133491082 counting only the distinct ones).

The product of its (nonzero) digits is 101250000, while the sum is 60.

The spelling of 5555610665556 in words is "five trillion, five hundred fifty-five billion, six hundred ten million, six hundred sixty-five thousand, five hundred fifty-six".