165214370315 has 4 divisors (see below), whose sum is σ = 198257244384. Its totient is φ = 132171496248.

The previous prime is 165214370227. The next prime is 165214370371. The reversal of 165214370315 is 513073412561.

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 165214370315 - 2²² = 165210176011 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 16521437027 + ... + 16521437036.

It is an arithmetic number, because the mean of its divisors is an integer number (49564311096).

Almost surely, 2^165214370315 is an apocalyptic number.

165214370315 is a deficient number, since it is larger than the sum of its proper divisors (33042874069).

165214370315 is an equidigital number, since it uses as much as digits as its factorization.

165214370315 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33042874068.

The product of its (nonzero) digits is 75600, while the sum is 38.

Adding to 165214370315 its reverse (513073412561), we get a palindrome (678287782876).

The spelling of 165214370315 in words is "one hundred sixty-five billion, two hundred fourteen million, three hundred seventy thousand, three hundred fifteen".