2105555055562 has 24 divisors (see below), whose sum is σ = 3678285991716. Its totient is φ = 901322811648.

The previous prime is 2105555055551. The next prime is 2105555055581. The reversal of 2105555055562 is 2655505555012.

It can be written as a sum of positive squares in 2 ways, for example, as 2052861393961 + 52693661601 = 1432781^2 + 229551^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 12510343 + ... + 12677530.

Almost surely, 2^{2105555055562} is an apocalyptic number.

2105555055562 is a deficient number, since it is larger than the sum of its proper divisors (1572730936154).

2105555055562 is a wasteful number, since it uses less digits than its factorization.

2105555055562 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25188742 (or 25188735 counting only the distinct ones).

The product of its (nonzero) digits is 1875000, while the sum is 46.

It can be divided in two parts, 21055550 and 55562, that added together give a palindrome (21111112).

The spelling of 2105555055562 in words is "two trillion, one hundred five billion, five hundred fifty-five million, fifty-five thousand, five hundred sixty-two".