165456433 has 8 divisors (see below), whose sum is σ = 169954848. Its totient is φ = 161017824.

The previous prime is 165456413. The next prime is 165456449. The reversal of 165456433 is 334654561.

165456433 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-165456433 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 165456392 and 165456401.

It is not an unprimeable number, because it can be changed into a prime (165456413) 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, 9316 + ... + 20437.

It is an arithmetic number, because the mean of its divisors is an integer number (21244356).

Almost surely, 2^165456433 is an apocalyptic number.

It is an amenable number.

165456433 is a deficient number, since it is larger than the sum of its proper divisors (4498415).

165456433 is an equidigital number, since it uses as much as digits as its factorization.

165456433 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29903.

The product of its digits is 129600, while the sum is 37.

The square root of 165456433 is about 12862.9869392766. The cubic root of 165456433 is about 548.9859364261.

The spelling of 165456433 in words is "one hundred sixty-five million, four hundred fifty-six thousand, four hundred thirty-three".