216188614651 has 2 divisors, whose sum is σ = 216188614652. Its totient is φ = 216188614650.

The previous prime is 216188614637. The next prime is 216188614657. The reversal of 216188614651 is 156416881612.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 216188614651 - 2²⁹ = 215651743739 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 216188614595 and 216188614604.

It is not a weakly prime, because it can be changed into another prime (216188614657) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 108094307325 + 108094307326.

It is an arithmetic number, because the mean of its divisors is an integer number (108094307326).

Almost surely, 2^216188614651 is an apocalyptic number.

216188614651 is a deficient number, since it is larger than the sum of its proper divisors (1).

216188614651 is an equidigital number, since it uses as much as digits as its factorization.

216188614651 is an evil number, because the sum of its binary digits is even.

The product of its digits is 552960, while the sum is 49.

The spelling of 216188614651 in words is "two hundred sixteen billion, one hundred eighty-eight million, six hundred fourteen thousand, six hundred fifty-one".