161367001111 has 2 divisors, whose sum is σ = 161367001112. Its totient is φ = 161367001110.

The previous prime is 161367001099. The next prime is 161367001153. The reversal of 161367001111 is 111100763161.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 161367001111 - 2⁵ = 161367001079 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 161367001111.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (161367007111) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 80683500555 + 80683500556.

It is an arithmetic number, because the mean of its divisors is an integer number (80683500556).

Almost surely, 2^161367001111 is an apocalyptic number.

161367001111 is a deficient number, since it is larger than the sum of its proper divisors (1).

161367001111 is an equidigital number, since it uses as much as digits as its factorization.

161367001111 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 756, while the sum is 28.

Adding to 161367001111 its reverse (111100763161), we get a palindrome (272467764272).

The spelling of 161367001111 in words is "one hundred sixty-one billion, three hundred sixty-seven million, one thousand, one hundred eleven".