16610161111 has 2 divisors, whose sum is σ = 16610161112. Its totient is φ = 16610161110.

The previous prime is 16610161097. The next prime is 16610161129. The reversal of 16610161111 is 11116101661.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 16610161111 - 2⁵ = 16610161079 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (16610161411) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8305080555 + 8305080556.

It is an arithmetic number, because the mean of its divisors is an integer number (8305080556).

Almost surely, 2^16610161111 is an apocalyptic number.

16610161111 is a deficient number, since it is larger than the sum of its proper divisors (1).

16610161111 is an equidigital number, since it uses as much as digits as its factorization.

16610161111 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 216, while the sum is 25.

Adding to 16610161111 its reverse (11116101661), we get a palindrome (27726262772).

The spelling of 16610161111 in words is "sixteen billion, six hundred ten million, one hundred sixty-one thousand, one hundred eleven".