16555151 has 2 divisors, whose sum is σ = 16555152. Its totient is φ = 16555150.

The previous prime is 16555111. The next prime is 16555153. The reversal of 16555151 is 15155561.

It is a happy number.

It is a strong prime.

It is an emirp because it is prime and its reverse (15155561) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 16555151 - 2¹⁰ = 16554127 is a prime.

It is a Sophie Germain prime.

Together with 16555153, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (16555153) by changing a digit.

It is a good prime.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8277575 + 8277576.

It is an arithmetic number, because the mean of its divisors is an integer number (8277576).

Almost surely, 2^16555151 is an apocalyptic number.

16555151 is a deficient number, since it is larger than the sum of its proper divisors (1).

16555151 is an equidigital number, since it uses as much as digits as its factorization.

16555151 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 3750, while the sum is 29.

The square root of 16555151 is about 4068.8021578838. The cubic root of 16555151 is about 254.8654987217.

The spelling of 16555151 in words is "sixteen million, five hundred fifty-five thousand, one hundred fifty-one".