11216618407 has 2 divisors, whose sum is σ = 11216618408. Its totient is φ = 11216618406.

The previous prime is 11216618401. The next prime is 11216618437. The reversal of 11216618407 is 70481661211.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 11216618407 - 2⁷ = 11216618279 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (11216618401) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5608309203 + 5608309204.

It is an arithmetic number, because the mean of its divisors is an integer number (5608309204).

Almost surely, 2^11216618407 is an apocalyptic number.

11216618407 is a deficient number, since it is larger than the sum of its proper divisors (1).

11216618407 is an equidigital number, since it uses as much as digits as its factorization.

11216618407 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 16128, while the sum is 37.

The spelling of 11216618407 in words is "eleven billion, two hundred sixteen million, six hundred eighteen thousand, four hundred seven".