18320000501 has 8 divisors (see below), whose sum is σ = 19988286624. Its totient is φ = 16652186320.

The previous prime is 18320000471. The next prime is 18320000597. The reversal of 18320000501 is 10500002381.

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

It is not a de Polignac number, because 18320000501 - 2²⁶ = 18252891637 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18320000201) 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, 34226 + ... + 194451.

It is an arithmetic number, because the mean of its divisors is an integer number (2498535828).

Almost surely, 2^18320000501 is an apocalyptic number.

18320000501 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

18320000501 is a deficient number, since it is larger than the sum of its proper divisors (1668286123).

18320000501 is a wasteful number, since it uses less digits than its factorization.

18320000501 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 235971.

The product of its (nonzero) digits is 240, while the sum is 20.

Adding to 18320000501 its reverse (10500002381), we get a palindrome (28820002882).

The spelling of 18320000501 in words is "eighteen billion, three hundred twenty million, five hundred one", and thus it is an aban number.