165416051 has 2 divisors, whose sum is σ = 165416052. Its totient is φ = 165416050.

The previous prime is 165416039. The next prime is 165416057. The reversal of 165416051 is 150614561.

165416051 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It is an emirp because it is prime and its reverse (150614561) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 165416051 - 2¹⁴ = 165399667 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (165416057) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 82708025 + 82708026.

It is an arithmetic number, because the mean of its divisors is an integer number (82708026).

Almost surely, 2^165416051 is an apocalyptic number.

165416051 is a deficient number, since it is larger than the sum of its proper divisors (1).

165416051 is an equidigital number, since it uses as much as digits as its factorization.

165416051 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3600, while the sum is 29.

The square root of 165416051 is about 12861.4171458669. The cubic root of 165416051 is about 548.9412701787.

The spelling of 165416051 in words is "one hundred sixty-five million, four hundred sixteen thousand, fifty-one".