2116541251 has 16 divisors (see below), whose sum is σ = 2340576000. Its totient is φ = 1897853920.

The previous prime is 2116541183. The next prime is 2116541257. The reversal of 2116541251 is 1521456112.

It is a cyclic number.

It is not a de Polignac number, because 2116541251 - 2²¹ = 2114444099 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2116541257) 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 15 ways as a sum of consecutive naturals, for example, 704250 + ... + 707248.

It is an arithmetic number, because the mean of its divisors is an integer number (146286000).

Almost surely, 2^2116541251 is an apocalyptic number.

2116541251 is a deficient number, since it is larger than the sum of its proper divisors (224034749).

2116541251 is a wasteful number, since it uses less digits than its factorization.

2116541251 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3866.

The product of its digits is 2400, while the sum is 28.

The square root of 2116541251 is about 46005.8827868785. The cubic root of 2116541251 is about 1283.9326581838.

Adding to 2116541251 its reverse (1521456112), we get a palindrome (3637997363).

The spelling of 2116541251 in words is "two billion, one hundred sixteen million, five hundred forty-one thousand, two hundred fifty-one".