161616107 has 2 divisors, whose sum is σ = 161616108. Its totient is φ = 161616106.

The previous prime is 161616097. The next prime is 161616149. The reversal of 161616107 is 701616161.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 161616107 - 2⁸ = 161615851 is a prime.

It is a super-2 number, since 2×161616107² = 52239532083670898, which contains 22 as substring.

It is an alternating number because its digits alternate between odd and even.

It is a self number, because there is not a number n which added to its sum of digits gives 161616107.

It is not a weakly prime, because it can be changed into another prime (161316107) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 80808053 + 80808054.

It is an arithmetic number, because the mean of its divisors is an integer number (80808054).

Almost surely, 2^161616107 is an apocalyptic number.

161616107 is a deficient number, since it is larger than the sum of its proper divisors (1).

161616107 is an equidigital number, since it uses as much as digits as its factorization.

161616107 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1512, while the sum is 29.

The square root of 161616107 is about 12712.8323752026. The cubic root of 161616107 is about 544.7052324034.

The spelling of 161616107 in words is "one hundred sixty-one million, six hundred sixteen thousand, one hundred seven".