13971366067 has 2 divisors, whose sum is σ = 13971366068. Its totient is φ = 13971366066.

The previous prime is 13971366043. The next prime is 13971366103. The reversal of 13971366067 is 76066317931.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 13971366067 - 2¹¹ = 13971364019 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 13971366067.

It is not a weakly prime, because it can be changed into another prime (13971366667) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6985683033 + 6985683034.

It is an arithmetic number, because the mean of its divisors is an integer number (6985683034).

Almost surely, 2^13971366067 is an apocalyptic number.

13971366067 is a deficient number, since it is larger than the sum of its proper divisors (1).

13971366067 is an equidigital number, since it uses as much as digits as its factorization.

13971366067 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 857304, while the sum is 49.

The spelling of 13971366067 in words is "thirteen billion, nine hundred seventy-one million, three hundred sixty-six thousand, sixty-seven".