16111057 has 2 divisors, whose sum is σ = 16111058. Its totient is φ = 16111056.

The previous prime is 16111003. The next prime is 16111079. The reversal of 16111057 is 75011161.

It is an a-pointer prime, because the next prime (16111079) can be obtained adding 16111057 to its sum of digits (22).

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 10394176 + 5716881 = 3224^2 + 2391^2 .

It is a cyclic number.

It is not a de Polignac number, because 16111057 - 2⁷ = 16110929 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (16111357) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8055528 + 8055529.

It is an arithmetic number, because the mean of its divisors is an integer number (8055529).

Almost surely, 2^16111057 is an apocalyptic number.

It is an amenable number.

16111057 is a deficient number, since it is larger than the sum of its proper divisors (1).

16111057 is an equidigital number, since it uses as much as digits as its factorization.

16111057 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 210, while the sum is 22.

The square root of 16111057 is about 4013.8581190670. The cubic root of 16111057 is about 252.5658789642.

The spelling of 16111057 in words is "sixteen million, one hundred eleven thousand, fifty-seven".