165326720315 has 8 divisors (see below), whose sum is σ = 210062185920. Its totient is φ = 124481295232.

The previous prime is 165326720297. The next prime is 165326720359. The reversal of 165326720315 is 513027623561.

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

It is a cyclic number.

It is not a de Polignac number, because 165326720315 - 2¹⁰ = 165326719291 is a prime.

It is a super-2 number, since 2×165326720315² (a number of 23 digits) contains 22 as substring.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 972510035 + ... + 972510204.

It is an arithmetic number, because the mean of its divisors is an integer number (26257773240).

Almost surely, 2^165326720315 is an apocalyptic number.

165326720315 is a deficient number, since it is larger than the sum of its proper divisors (44735465605).

165326720315 is a wasteful number, since it uses less digits than its factorization.

165326720315 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1945020261.

The product of its (nonzero) digits is 226800, while the sum is 41.

The spelling of 165326720315 in words is "one hundred sixty-five billion, three hundred twenty-six million, seven hundred twenty thousand, three hundred fifteen".