5511061105556 has 6 divisors (see below), whose sum is σ = 9644356934730. Its totient is φ = 2755530552776.

The previous prime is 5511061105523. The next prime is 5511061105601. The reversal of 5511061105556 is 6555011601155.

It can be written as a sum of positive squares in only one way, i.e., 4590006304900 + 921054800656 = 2142430^2 + 959716^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 688882638191 + ... + 688882638198.

It is an arithmetic number, because the mean of its divisors is an integer number (1607392822455).

Almost surely, 2^{5511061105556} is an apocalyptic number.

It is an amenable number.

5511061105556 is a deficient number, since it is larger than the sum of its proper divisors (4133295829174).

5511061105556 is a wasteful number, since it uses less digits than its factorization.

5511061105556 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1377765276393 (or 1377765276391 counting only the distinct ones).

The product of its (nonzero) digits is 112500, while the sum is 41.

The spelling of 5511061105556 in words is "five trillion, five hundred eleven billion, sixty-one million, one hundred five thousand, five hundred fifty-six".