165417499 has 16 divisors (see below), whose sum is σ = 181067040. Its totient is φ = 150209280.

The previous prime is 165417407. The next prime is 165417509. The reversal of 165417499 is 994714561.

It is a de Polignac number, because none of the positive numbers 2^k-165417499 is a prime.

It is a super-3 number, since 3×165417499³ (a number of 26 digits) contains 333 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (165415499) 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 in 15 ways as a sum of consecutive naturals, for example, 232957 + ... + 233665.

It is an arithmetic number, because the mean of its divisors is an integer number (11316690).

Almost surely, 2^165417499 is an apocalyptic number.

165417499 is a deficient number, since it is larger than the sum of its proper divisors (15649541).

165417499 is a wasteful number, since it uses less digits than its factorization.

165417499 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 990.

The product of its digits is 272160, while the sum is 46.

The square root of 165417499 is about 12861.4734381407. The cubic root of 165417499 is about 548.9428719270.

The spelling of 165417499 in words is "one hundred sixty-five million, four hundred seventeen thousand, four hundred ninety-nine".