2116658751 has 8 divisors (see below), whose sum is σ = 2822424240. Its totient is φ = 1410999552.

The previous prime is 2116658749. The next prime is 2116658813. The reversal of 2116658751 is 1578566112.

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

It is not a de Polignac number, because 2116658751 - 2¹ = 2116658749 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2116658051) 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 7 ways as a sum of consecutive naturals, for example, 64041 + ... + 91293.

It is an arithmetic number, because the mean of its divisors is an integer number (352803030).

Almost surely, 2^2116658751 is an apocalyptic number.

2116658751 is a deficient number, since it is larger than the sum of its proper divisors (705765489).

2116658751 is a wasteful number, since it uses less digits than its factorization.

2116658751 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 53145.

The product of its digits is 100800, while the sum is 42.

The square root of 2116658751 is about 46007.1597797560. The cubic root of 2116658751 is about 1283.9564169609.

The spelling of 2116658751 in words is "two billion, one hundred sixteen million, six hundred fifty-eight thousand, seven hundred fifty-one".