16618051 has 2 divisors, whose sum is σ = 16618052. Its totient is φ = 16618050.

The previous prime is 16618039. The next prime is 16618093. The reversal of 16618051 is 15081661.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 16618051 - 2⁹ = 16617539 is a prime.

It is not a weakly prime, because it can be changed into another prime (16618451) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8309025 + 8309026.

It is an arithmetic number, because the mean of its divisors is an integer number (8309026).

Almost surely, 2^16618051 is an apocalyptic number.

16618051 is a deficient number, since it is larger than the sum of its proper divisors (1).

16618051 is an equidigital number, since it uses as much as digits as its factorization.

16618051 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1440, while the sum is 28.

The square root of 16618051 is about 4076.5243774569. The cubic root of 16618051 is about 255.1878712916.

The spelling of 16618051 in words is "sixteen million, six hundred eighteen thousand, fifty-one".