165048899 has 4 divisors (see below), whose sum is σ = 165091200. Its totient is φ = 165006600.

The previous prime is 165048893. The next prime is 165048911. The reversal of 165048899 is 998840561.

It is a happy number.

165048899 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 998840561 = 113 ⋅8839297.

It is a cyclic number.

It is not a de Polignac number, because 165048899 - 2⁴ = 165048883 is a prime.

It is a super-2 number, since 2×165048899² = 54482278122224402, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (165048893) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 14627 + ... + 23324.

It is an arithmetic number, because the mean of its divisors is an integer number (41272800).

Almost surely, 2^165048899 is an apocalyptic number.

165048899 is a deficient number, since it is larger than the sum of its proper divisors (42301).

165048899 is an equidigital number, since it uses as much as digits as its factorization.

165048899 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 42300.

The product of its (nonzero) digits is 622080, while the sum is 50.

The square root of 165048899 is about 12847.1358286585. The cubic root of 165048899 is about 548.5348320242.

The spelling of 165048899 in words is "one hundred sixty-five million, forty-eight thousand, eight hundred ninety-nine".