16505530115 has 8 divisors (see below), whose sum is σ = 19841820048. Its totient is φ = 13180968160.

The previous prime is 16505530087. The next prime is 16505530117. The reversal of 16505530115 is 51103550561.

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

It is not a de Polignac number, because 16505530115 - 2¹⁰ = 16505529091 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (16505530117) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2928896 + ... + 2934525.

It is an arithmetic number, because the mean of its divisors is an integer number (2480227506).

Almost surely, 2^16505530115 is an apocalyptic number.

16505530115 is a deficient number, since it is larger than the sum of its proper divisors (3336289933).

16505530115 is an equidigital number, since it uses as much as digits as its factorization.

16505530115 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5863989.

The product of its (nonzero) digits is 11250, while the sum is 32.

The spelling of 16505530115 in words is "sixteen billion, five hundred five million, five hundred thirty thousand, one hundred fifteen".