2116624651 has 2 divisors, whose sum is σ = 2116624652. Its totient is φ = 2116624650.

The previous prime is 2116624619. The next prime is 2116624663. The reversal of 2116624651 is 1564266112.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 2116624651 - 2⁵ = 2116624619 is a prime.

It is not a weakly prime, because it can be changed into another prime (2116624051) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1058312325 + 1058312326.

It is an arithmetic number, because the mean of its divisors is an integer number (1058312326).

Almost surely, 2^2116624651 is an apocalyptic number.

2116624651 is a deficient number, since it is larger than the sum of its proper divisors (1).

2116624651 is an equidigital number, since it uses as much as digits as its factorization.

2116624651 is an evil number, because the sum of its binary digits is even.

The product of its digits is 17280, while the sum is 34.

The square root of 2116624651 is about 46006.7891837716. The cubic root of 2116624651 is about 1283.9495219510.

The spelling of 2116624651 in words is "two billion, one hundred sixteen million, six hundred twenty-four thousand, six hundred fifty-one".