2105610543563 has 16 divisors (see below), whose sum is σ = 2242267372800. Its totient is φ = 1970380339200.

The previous prime is 2105610543521. The next prime is 2105610543599. The reversal of 2105610543563 is 3653450165012.

It is a cyclic number.

It is not a de Polignac number, because 2105610543563 - 2⁶ = 2105610543499 is a prime.

It is a super-2 number, since 2×2105610543563² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 2105610543563.

It is not an unprimeable number, because it can be changed into a prime (2105610543763) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 14794163 + ... + 14935811.

It is an arithmetic number, because the mean of its divisors is an integer number (140141710800).

Almost surely, 2^{2105610543563} is an apocalyptic number.

2105610543563 is a deficient number, since it is larger than the sum of its proper divisors (136656829237).

2105610543563 is a wasteful number, since it uses less digits than its factorization.

2105610543563 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 146678.

The product of its (nonzero) digits is 324000, while the sum is 41.

The spelling of 2105610543563 in words is "two trillion, one hundred five billion, six hundred ten million, five hundred forty-three thousand, five hundred sixty-three".