18162420000 has 240 divisors, whose sum is σ = 59849741952. Its totient is φ = 4821120000.

The previous prime is 18162419969. The next prime is 18162420037. The reversal of 18162420000 is 2426181.

It is a tau number, because it is divible by the number of its divisors (240).

It is a Harshad number since it is a multiple of its sum of digits (24).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 16259442 + ... + 16260558.

Almost surely, 2^18162420000 is an apocalyptic number.

18162420000 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 18162420000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (29924870976).

18162420000 is an abundant number, since it is smaller than the sum of its proper divisors (41687321952).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

18162420000 is a wasteful number, since it uses less digits than its factorization.

18162420000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1421 (or 1398 counting only the distinct ones).

The product of its (nonzero) digits is 768, while the sum is 24.

Adding to 18162420000 its reverse (2426181), we get a palindrome (18164846181).

The spelling of 18162420000 in words is "eighteen billion, one hundred sixty-two million, four hundred twenty thousand".