16327367515 has 4 divisors (see below), whose sum is σ = 19592841024. Its totient is φ = 13061894008.

The previous prime is 16327367491. The next prime is 16327367521. The reversal of 16327367515 is 51576372361.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 51576372361 = 61 ⋅845514301.

It is a cyclic number.

It is not a de Polignac number, because 16327367515 - 2⁹ = 16327367003 is a prime.

It is a Duffinian number.

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 3 ways as a sum of consecutive naturals, for example, 1632736747 + ... + 1632736756.

It is an arithmetic number, because the mean of its divisors is an integer number (4898210256).

Almost surely, 2^16327367515 is an apocalyptic number.

16327367515 is a deficient number, since it is larger than the sum of its proper divisors (3265473509).

16327367515 is an equidigital number, since it uses as much as digits as its factorization.

16327367515 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3265473508.

The product of its digits is 793800, while the sum is 46.

The spelling of 16327367515 in words is "sixteen billion, three hundred twenty-seven million, three hundred sixty-seven thousand, five hundred fifteen".