2106011505 has 32 divisors (see below), whose sum is σ = 3745889280. Its totient is φ = 1003357440.

The previous prime is 2106011503. The next prime is 2106011569. The reversal of 2106011505 is 5051106012.

It is not a de Polignac number, because 2106011505 - 2¹ = 2106011503 is a prime.

It is not an unprimeable number, because it can be changed into a prime (2106011503) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 168150 + ... + 180239.

It is an arithmetic number, because the mean of its divisors is an integer number (117059040).

Almost surely, 2^2106011505 is an apocalyptic number.

It is an amenable number.

2106011505 is a deficient number, since it is larger than the sum of its proper divisors (1639877775).

2106011505 is a wasteful number, since it uses less digits than its factorization.

2106011505 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 348441.

The product of its (nonzero) digits is 300, while the sum is 21.

The square root of 2106011505 is about 45891.3009730602. The cubic root of 2106011505 is about 1281.7999386427.

Adding to 2106011505 its reverse (5051106012), we get a palindrome (7157117517).

The spelling of 2106011505 in words is "two billion, one hundred six million, eleven thousand, five hundred five".