165670341 has 4 divisors (see below), whose sum is σ = 220893792. Its totient is φ = 110446892.

The previous prime is 165670339. The next prime is 165670363. The reversal of 165670341 is 143076561.

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.

It is a cyclic number.

It is not a de Polignac number, because 165670341 - 2¹ = 165670339 is a prime.

It is an alternating number because its digits alternate between odd and even.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (165677341) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 27611721 + ... + 27611726.

It is an arithmetic number, because the mean of its divisors is an integer number (55223448).

Almost surely, 2^165670341 is an apocalyptic number.

It is an amenable number.

165670341 is a deficient number, since it is larger than the sum of its proper divisors (55223451).

165670341 is an equidigital number, since it uses as much as digits as its factorization.

165670341 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 55223450.

The product of its (nonzero) digits is 15120, while the sum is 33.

The square root of 165670341 is about 12871.2991185816. The cubic root of 165670341 is about 549.2224174358. Note that the first 3 decimals are identical.

The spelling of 165670341 in words is "one hundred sixty-five million, six hundred seventy thousand, three hundred forty-one".