2106111715 has 8 divisors (see below), whose sum is σ = 2660351760. Its totient is φ = 1596210912.

The previous prime is 2106111713. The next prime is 2106111727. The reversal of 2106111715 is 5171116012.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 2106111715 - 2¹ = 2106111713 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 2106111715.

It is not an unprimeable number, because it can be changed into a prime (2106111713) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 11084704 + ... + 11084893.

It is an arithmetic number, because the mean of its divisors is an integer number (332543970).

Almost surely, 2^2106111715 is an apocalyptic number.

2106111715 is a deficient number, since it is larger than the sum of its proper divisors (554240045).

2106111715 is a wasteful number, since it uses less digits than its factorization.

2106111715 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22169621.

The product of its (nonzero) digits is 420, while the sum is 25.

The square root of 2106111715 is about 45892.3927791960. The cubic root of 2106111715 is about 1281.8202688790.

Adding to 2106111715 its reverse (5171116012), we get a palindrome (7277227727).

The spelling of 2106111715 in words is "two billion, one hundred six million, one hundred eleven thousand, seven hundred fifteen".