5551550111540 has 48 divisors (see below), whose sum is σ = 12168426614400. Its totient is φ = 2123496777600.

The previous prime is 5551550111531. The next prime is 5551550111561. The reversal of 5551550111540 is 451110551555.

It is a junction number, because it is equal to n+sod(n) for n = 5551550111494 and 5551550111503.

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, 72011 + ... + 3332909.

It is an arithmetic number, because the mean of its divisors is an integer number (253508887800).

Almost surely, 2^{5551550111540} is an apocalyptic number.

It is an amenable number.

5551550111540 is an abundant number, since it is smaller than the sum of its proper divisors (6616876502860).

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

5551550111540 is a wasteful number, since it uses less digits than its factorization.

5551550111540 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3264632 (or 3264630 counting only the distinct ones).

The product of its (nonzero) digits is 62500, while the sum is 38.

The spelling of 5551550111540 in words is "five trillion, five hundred fifty-one billion, five hundred fifty million, one hundred eleven thousand, five hundred forty".