16057087181 has 2 divisors, whose sum is σ = 16057087182. Its totient is φ = 16057087180.

The previous prime is 16057087153. The next prime is 16057087183. The reversal of 16057087181 is 18178075061.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 13652754025 + 2404333156 = 116845^2 + 49034^2 .

It is a cyclic number.

It is not a de Polignac number, because 16057087181 - 2⁶ = 16057087117 is a prime.

It is a super-2 number, since 2×16057087181² (a number of 21 digits) contains 22 as substring.

It is a Sophie Germain prime.

Together with 16057087183, it forms a pair of twin primes.

It is a Chen prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (16057087183) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8028543590 + 8028543591.

It is an arithmetic number, because the mean of its divisors is an integer number (8028543591).

Almost surely, 2^16057087181 is an apocalyptic number.

It is an amenable number.

16057087181 is a deficient number, since it is larger than the sum of its proper divisors (1).

16057087181 is an equidigital number, since it uses as much as digits as its factorization.

16057087181 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 94080, while the sum is 44.

The spelling of 16057087181 in words is "sixteen billion, fifty-seven million, eighty-seven thousand, one hundred eighty-one".