18158282330815 has 24 divisors (see below), whose sum is σ = 24035556931344. Its totient is φ = 13159358995200.

The previous prime is 18158282330813. The next prime is 18158282330831. The reversal of 18158282330815 is 51803328285181.

It is not a de Polignac number, because 18158282330815 - 2¹ = 18158282330813 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (55).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18158282330813) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 52856506 + ... + 53198935.

It is an arithmetic number, because the mean of its divisors is an integer number (1001481538806).

Almost surely, 2^{18158282330815} is an apocalyptic number.

18158282330815 is a deficient number, since it is larger than the sum of its proper divisors (5877274600529).

18158282330815 is a wasteful number, since it uses less digits than its factorization.

18158282330815 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 106055751 (or 106055740 counting only the distinct ones).

The product of its (nonzero) digits is 3686400, while the sum is 55.

The spelling of 18158282330815 in words is "eighteen trillion, one hundred fifty-eight billion, two hundred eighty-two million, three hundred thirty thousand, eight hundred fifteen".