165099305 has 8 divisors (see below), whose sum is σ = 226421952. Its totient is φ = 113210928.

The previous prime is 165099281. The next prime is 165099307. The reversal of 165099305 is 503990561.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 165099305 - 2¹⁶ = 165033769 is a prime.

It is a super-2 number, since 2×165099305² = 54515561022966050, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (165099307) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2358527 + ... + 2358596.

It is an arithmetic number, because the mean of its divisors is an integer number (28302744).

Almost surely, 2^165099305 is an apocalyptic number.

It is an amenable number.

165099305 is a deficient number, since it is larger than the sum of its proper divisors (61322647).

165099305 is an equidigital number, since it uses as much as digits as its factorization.

165099305 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4717135.

The product of its (nonzero) digits is 36450, while the sum is 38.

The square root of 165099305 is about 12849.0974391200. The cubic root of 165099305 is about 548.5906672598.

The spelling of 165099305 in words is "one hundred sixty-five million, ninety-nine thousand, three hundred five".