165752961 has 8 divisors (see below), whose sum is σ = 241095264. Its totient is φ = 100456320.

The previous prime is 165752947. The next prime is 165752963. The reversal of 165752961 is 169257561.

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

It is not a de Polignac number, because 165752961 - 2¹¹ = 165750913 is a prime.

It is not an unprimeable number, because it can be changed into a prime (165752963) 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, 2511376 + ... + 2511441.

It is an arithmetic number, because the mean of its divisors is an integer number (30136908).

Almost surely, 2^165752961 is an apocalyptic number.

165752961 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

165752961 is a deficient number, since it is larger than the sum of its proper divisors (75342303).

165752961 is a wasteful number, since it uses less digits than its factorization.

165752961 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5022831.

The product of its digits is 113400, while the sum is 42.

The square root of 165752961 is about 12874.5081847813. The cubic root of 165752961 is about 549.3137015582.

The spelling of 165752961 in words is "one hundred sixty-five million, seven hundred fifty-two thousand, nine hundred sixty-one".