5551111115544 has 64 divisors (see below), whose sum is σ = 13914150876000. Its totient is φ = 1845526947840.

The previous prime is 5551111115519. The next prime is 5551111115617. The reversal of 5551111115544 is 4455111111555.

It is a zygodrome in base 10.

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, 13909504 + ... + 14303024.

Almost surely, 2^{5551111115544} is an apocalyptic number.

It is an amenable number.

5551111115544 is an abundant number, since it is smaller than the sum of its proper divisors (8363039760456).

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

5551111115544 is a wasteful number, since it uses less digits than its factorization.

5551111115544 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 395068 (or 395064 counting only the distinct ones).

The product of its digits is 50000, while the sum is 39.

The spelling of 5551111115544 in words is "five trillion, five hundred fifty-one billion, one hundred eleven million, one hundred fifteen thousand, five hundred forty-four".