2117051611 has 16 divisors (see below), whose sum is σ = 2265702400. Its totient is φ = 1972289088.

The previous prime is 2117051581. The next prime is 2117051621. The reversal of 2117051611 is 1161507112.

It is a cyclic number.

It is not a de Polignac number, because 2117051611 - 2⁷ = 2117051483 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2117051621) 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, 506950 + ... + 511108.

It is an arithmetic number, because the mean of its divisors is an integer number (141606400).

Almost surely, 2^2117051611 is an apocalyptic number.

2117051611 is a deficient number, since it is larger than the sum of its proper divisors (148650789).

2117051611 is a wasteful number, since it uses less digits than its factorization.

2117051611 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4618.

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

The square root of 2117051611 is about 46011.4291345096. The cubic root of 2117051611 is about 1284.0358477956.

Adding to 2117051611 its reverse (1161507112), we get a palindrome (3278558723).

The spelling of 2117051611 in words is "two billion, one hundred seventeen million, fifty-one thousand, six hundred eleven".