211613140667 has 2 divisors, whose sum is σ = 211613140668. Its totient is φ = 211613140666.

The previous prime is 211613140649. The next prime is 211613140691. The reversal of 211613140667 is 766041316112.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 211613140667 - 2⁶ = 211613140603 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 211613140667.

It is not a weakly prime, because it can be changed into another prime (211613140267) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 105806570333 + 105806570334.

It is an arithmetic number, because the mean of its divisors is an integer number (105806570334).

Almost surely, 2^211613140667 is an apocalyptic number.

211613140667 is a deficient number, since it is larger than the sum of its proper divisors (1).

211613140667 is an equidigital number, since it uses as much as digits as its factorization.

211613140667 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 36288, while the sum is 38.

Adding to 211613140667 its reverse (766041316112), we get a palindrome (977654456779).

The spelling of 211613140667 in words is "two hundred eleven billion, six hundred thirteen million, one hundred forty thousand, six hundred sixty-seven".