5511212105056 has 48 divisors (see below), whose sum is σ = 12409923133440. Its totient is φ = 2360101207680.

The previous prime is 5511212105011. The next prime is 5511212105123. The reversal of 5511212105056 is 6505012121155.

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, 9331810 + ... + 9904801.

It is an arithmetic number, because the mean of its divisors is an integer number (258540065280).

Almost surely, 2^{5511212105056} is an apocalyptic number.

5511212105056 is a gapful number since it is divisible by the number (56) formed by its first and last digit.

It is an amenable number.

5511212105056 is an abundant number, since it is smaller than the sum of its proper divisors (6898711028384).

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

5511212105056 is a wasteful number, since it uses less digits than its factorization.

5511212105056 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19237907 (or 19237899 counting only the distinct ones).

The product of its (nonzero) digits is 15000, while the sum is 34.

The spelling of 5511212105056 in words is "five trillion, five hundred eleven billion, two hundred twelve million, one hundred five thousand, fifty-six".