2105964511 has 16 divisors (see below), whose sum is σ = 2418296320. Its totient is φ = 1796528160.

The previous prime is 2105964499. The next prime is 2105964521. The reversal of 2105964511 is 1154695012.

It is a happy number.

It is not a de Polignac number, because 2105964511 - 2¹³ = 2105956319 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2105964521) 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, 2177350 + ... + 2178316.

It is an arithmetic number, because the mean of its divisors is an integer number (151143520).

Almost surely, 2^2105964511 is an apocalyptic number.

2105964511 is a deficient number, since it is larger than the sum of its proper divisors (312331809).

2105964511 is an equidigital number, since it uses as much as digits as its factorization.

2105964511 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2134.

The product of its (nonzero) digits is 10800, while the sum is 34.

The square root of 2105964511 is about 45890.7889559550. The cubic root of 2105964511 is about 1281.7904044507.

The spelling of 2105964511 in words is "two billion, one hundred five million, nine hundred sixty-four thousand, five hundred eleven".