13616994899 has 2 divisors, whose sum is σ = 13616994900. Its totient is φ = 13616994898.

The previous prime is 13616994889. The next prime is 13616994901. The reversal of 13616994899 is 99849961631.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 13616994899 - 2¹⁶ = 13616929363 is a prime.

Together with 13616994901, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (13616994829) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6808497449 + 6808497450.

It is an arithmetic number, because the mean of its divisors is an integer number (6808497450).

Almost surely, 2^13616994899 is an apocalyptic number.

13616994899 is a deficient number, since it is larger than the sum of its proper divisors (1).

13616994899 is an equidigital number, since it uses as much as digits as its factorization.

13616994899 is an evil number, because the sum of its binary digits is even.

The product of its digits is 22674816, while the sum is 65.

The spelling of 13616994899 in words is "thirteen billion, six hundred sixteen million, nine hundred ninety-four thousand, eight hundred ninety-nine".