18001316510 has 32 divisors (see below), whose sum is σ = 32621006880. Its totient is φ = 7152058368.

The previous prime is 18001316503. The next prime is 18001316533. The reversal of 18001316510 is 1561310081.

It is a self number, because there is not a number n which added to its sum of digits gives 18001316510.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1291961 + ... + 1305819.

It is an arithmetic number, because the mean of its divisors is an integer number (1019406465).

Almost surely, 2^18001316510 is an apocalyptic number.

18001316510 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

18001316510 is a deficient number, since it is larger than the sum of its proper divisors (14619690370).

18001316510 is a wasteful number, since it uses less digits than its factorization.

18001316510 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14732.

The product of its (nonzero) digits is 720, while the sum is 26.

Adding to 18001316510 its reverse (1561310081), we get a palindrome (19562626591).

The spelling of 18001316510 in words is "eighteen billion, one million, three hundred sixteen thousand, five hundred ten".