16111887667 has 2 divisors, whose sum is σ = 16111887668. Its totient is φ = 16111887666.

The previous prime is 16111887607. The next prime is 16111887677. The reversal of 16111887667 is 76678811161.

It is a happy number.

It is a strong prime.

It is an emirp because it is prime and its reverse (76678811161) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-16111887667 is a prime.

It is not a weakly prime, because it can be changed into another prime (16111887607) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8055943833 + 8055943834.

It is an arithmetic number, because the mean of its divisors is an integer number (8055943834).

Almost surely, 2^16111887667 is an apocalyptic number.

16111887667 is a deficient number, since it is larger than the sum of its proper divisors (1).

16111887667 is an equidigital number, since it uses as much as digits as its factorization.

16111887667 is an evil number, because the sum of its binary digits is even.

The product of its digits is 677376, while the sum is 52.

The spelling of 16111887667 in words is "sixteen billion, one hundred eleven million, eight hundred eighty-seven thousand, six hundred sixty-seven".