165351434565 has 8 divisors (see below), whose sum is σ = 264562295328. Its totient is φ = 88187431760.

The previous prime is 165351434551. The next prime is 165351434581. The reversal of 165351434565 is 565434153561.

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

It is not a de Polignac number, because 165351434565 - 2⁸ = 165351434309 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5511714471 + ... + 5511714500.

It is an arithmetic number, because the mean of its divisors is an integer number (33070286916).

Almost surely, 2^165351434565 is an apocalyptic number.

165351434565 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

165351434565 is a deficient number, since it is larger than the sum of its proper divisors (99210860763).

165351434565 is a wasteful number, since it uses less digits than its factorization.

165351434565 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11023428979.

The product of its digits is 3240000, while the sum is 48.

The spelling of 165351434565 in words is "one hundred sixty-five billion, three hundred fifty-one million, four hundred thirty-four thousand, five hundred sixty-five".