215042994339611 has 2 divisors, whose sum is σ = 215042994339612. Its totient is φ = 215042994339610.

The previous prime is 215042994339581. The next prime is 215042994339623. The reversal of 215042994339611 is 116933499240512.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 215042994339611 - 2³⁴ = 215025814470427 is a prime.

It is not a weakly prime, because it can be changed into another prime (215042994339911) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 107521497169805 + 107521497169806.

It is an arithmetic number, because the mean of its divisors is an integer number (107521497169806).

Almost surely, 2^{215042994339611} is an apocalyptic number.

215042994339611 is a deficient number, since it is larger than the sum of its proper divisors (1).

215042994339611 is an equidigital number, since it uses as much as digits as its factorization.

215042994339611 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 12597120, while the sum is 59.

The spelling of 215042994339611 in words is "two hundred fifteen trillion, forty-two billion, nine hundred ninety-four million, three hundred thirty-nine thousand, six hundred eleven".