165404340483 has 4 divisors (see below), whose sum is σ = 220539120648. Its totient is φ = 110269560320.

The previous prime is 165404340481. The next prime is 165404340511. The reversal of 165404340483 is 384043404561.

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: 384043404561 = 3 ⋅128014468187.

It is a cyclic number.

It is not a de Polignac number, because 165404340483 - 2¹ = 165404340481 is a prime.

It is not an unprimeable number, because it can be changed into a prime (165404340481) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 27567390078 + ... + 27567390083.

It is an arithmetic number, because the mean of its divisors is an integer number (55134780162).

Almost surely, 2^165404340483 is an apocalyptic number.

165404340483 is a deficient number, since it is larger than the sum of its proper divisors (55134780165).

165404340483 is an equidigital number, since it uses as much as digits as its factorization.

165404340483 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 55134780164.

The product of its (nonzero) digits is 552960, while the sum is 42.

The spelling of 165404340483 in words is "one hundred sixty-five billion, four hundred four million, three hundred forty thousand, four hundred eighty-three".