165047818083 has 4 divisors (see below), whose sum is σ = 220063757448. Its totient is φ = 110031878720.

The previous prime is 165047818049. The next prime is 165047818097. The reversal of 165047818083 is 380818740561.

It is a happy number.

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 165047818083 - 2²² = 165043623779 is a prime.

It is a super-3 number, since 3×165047818083³ (a number of 35 digits) contains 333 as substring.

It is not an unprimeable number, because it can be changed into a prime (165047818003) 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, 27507969678 + ... + 27507969683.

It is an arithmetic number, because the mean of its divisors is an integer number (55015939362).

Almost surely, 2^165047818083 is an apocalyptic number.

165047818083 is a deficient number, since it is larger than the sum of its proper divisors (55015939365).

165047818083 is an equidigital number, since it uses as much as digits as its factorization.

165047818083 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 55015939364.

The product of its (nonzero) digits is 1290240, while the sum is 51.

The spelling of 165047818083 in words is "one hundred sixty-five billion, forty-seven million, eight hundred eighteen thousand, eighty-three".