165336432353 has 4 divisors (see below), whose sum is σ = 165342375108. Its totient is φ = 165330489600.

The previous prime is 165336432301. The next prime is 165336432361. The reversal of 165336432353 is 353234633561.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 353234633561 = 877 ⋅402776093.

It can be written as a sum of positive squares in 2 ways, for example, as 155619993169 + 9716439184 = 394487^2 + 98572^2 .

It is a cyclic number.

It is not a de Polignac number, because 165336432353 - 2⁸ = 165336432097 is a prime.

It is a super-2 number, since 2×165336432353² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (165336432553) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2929448 + ... + 2985353.

It is an arithmetic number, because the mean of its divisors is an integer number (41335593777).

Almost surely, 2^165336432353 is an apocalyptic number.

It is an amenable number.

165336432353 is a deficient number, since it is larger than the sum of its proper divisors (5942755).

165336432353 is an equidigital number, since it uses as much as digits as its factorization.

165336432353 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5942754.

The product of its digits is 1749600, while the sum is 44.

The spelling of 165336432353 in words is "one hundred sixty-five billion, three hundred thirty-six million, four hundred thirty-two thousand, three hundred fifty-three".