5543615581656 has 32 divisors (see below), whose sum is σ = 13865992931760. Its totient is φ = 1846944663552.

The previous prime is 5543615581643. The next prime is 5543615581667. The reversal of 5543615581656 is 6561855163455.

It is a self number, because there is not a number n which added to its sum of digits gives 5543615581656.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 57900985 + ... + 57996648.

Almost surely, 2^{5543615581656} is an apocalyptic number.

It is an amenable number.

5543615581656 is an abundant number, since it is smaller than the sum of its proper divisors (8322377350104).

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

5543615581656 is a wasteful number, since it uses less digits than its factorization.

5543615581656 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 115899635 (or 115899631 counting only the distinct ones).

The product of its digits is 64800000, while the sum is 60.

The spelling of 5543615581656 in words is "five trillion, five hundred forty-three billion, six hundred fifteen million, five hundred eighty-one thousand, six hundred fifty-six".