16818500023 has 8 divisors (see below), whose sum is σ = 18114153008. Its totient is φ = 15523121664.

The previous prime is 16818499969. The next prime is 16818500077. The reversal of 16818500023 is 32000581861.

It is an interprime number because it is at equal distance from previous prime (16818499969) and next prime (16818500077).

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-16818500023 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 (16818500623) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 68740 + ... + 195862.

It is an arithmetic number, because the mean of its divisors is an integer number (2264269126).

Almost surely, 2^16818500023 is an apocalyptic number.

16818500023 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

16818500023 is a deficient number, since it is larger than the sum of its proper divisors (1295652985).

16818500023 is a wasteful number, since it uses less digits than its factorization.

16818500023 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 137313.

The product of its (nonzero) digits is 11520, while the sum is 34.

The spelling of 16818500023 in words is "sixteen billion, eight hundred eighteen million, five hundred thousand, twenty-three".