165799041 has 4 divisors (see below), whose sum is σ = 221065392. Its totient is φ = 110532692.

The previous prime is 165799001. The next prime is 165799043. The reversal of 165799041 is 140997561.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 140997561 = 3 ⋅46999187.

It is a cyclic number.

It is not a de Polignac number, because 165799041 - 2¹¹ = 165796993 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 165798984 and 165799002.

It is not an unprimeable number, because it can be changed into a prime (165799043) 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, 27633171 + ... + 27633176.

It is an arithmetic number, because the mean of its divisors is an integer number (55266348).

Almost surely, 2^165799041 is an apocalyptic number.

It is an amenable number.

165799041 is a deficient number, since it is larger than the sum of its proper divisors (55266351).

165799041 is an equidigital number, since it uses as much as digits as its factorization.

165799041 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 55266350.

The product of its (nonzero) digits is 68040, while the sum is 42.

The square root of 165799041 is about 12876.2976433445. The cubic root of 165799041 is about 549.3646006592.

The spelling of 165799041 in words is "one hundred sixty-five million, seven hundred ninety-nine thousand, forty-one".