165751041 has 32 divisors (see below), whose sum is σ = 244224000. Its totient is φ = 99714384.

The previous prime is 165750989. The next prime is 165751051. The reversal of 165751041 is 140157561.

It is not a de Polignac number, because 165751041 - 2⁷ = 165750913 is a prime.

It is not an unprimeable number, because it can be changed into a prime (165751051) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 693400 + ... + 693638.

It is an arithmetic number, because the mean of its divisors is an integer number (7632000).

Almost surely, 2^165751041 is an apocalyptic number.

It is an amenable number.

165751041 is a deficient number, since it is larger than the sum of its proper divisors (78472959).

165751041 is an equidigital number, since it uses as much as digits as its factorization.

165751041 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 330 (or 284 counting only the distinct ones).

The product of its (nonzero) digits is 4200, while the sum is 30.

The square root of 165751041 is about 12874.4336186102. The cubic root of 165751041 is about 549.3115805576.

The spelling of 165751041 in words is "one hundred sixty-five million, seven hundred fifty-one thousand, forty-one".