165600379 has 4 divisors (see below), whose sum is σ = 189257584. Its totient is φ = 141943176.

The previous prime is 165600343. The next prime is 165600397. The reversal of 165600379 is 973006561.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 165600379 - 2⁹ = 165599867 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (165600319) 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, 11828592 + ... + 11828605.

It is an arithmetic number, because the mean of its divisors is an integer number (47314396).

Almost surely, 2^165600379 is an apocalyptic number.

165600379 is a deficient number, since it is larger than the sum of its proper divisors (23657205).

165600379 is an equidigital number, since it uses as much as digits as its factorization.

165600379 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23657204.

The product of its (nonzero) digits is 34020, while the sum is 37.

The square root of 165600379 is about 12868.5810795130. The cubic root of 165600379 is about 549.1450949879.

The spelling of 165600379 in words is "one hundred sixty-five million, six hundred thousand, three hundred seventy-nine".