18152100000 has 576 divisors, whose sum is σ = 67799410560. Its totient is φ = 4782240000.

The previous prime is 18152099993. The next prime is 18152100041. The reversal of 18152100000 is 125181.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is an unprimeable number.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 218699959 + ... + 218700041.

It is an arithmetic number, because the mean of its divisors is an integer number (117707310).

Almost surely, 2^18152100000 is an apocalyptic number.

18152100000 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 18152100000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (33899705280).

18152100000 is an abundant number, since it is smaller than the sum of its proper divisors (49647310560).

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

18152100000 is an frugal number, since it uses more digits than its factorization.

18152100000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 139 (or 93 counting only the distinct ones).

The product of its (nonzero) digits is 80, while the sum is 18.

Adding to 18152100000 its reverse (125181), we get a palindrome (18152225181).

The spelling of 18152100000 in words is "eighteen billion, one hundred fifty-two million, one hundred thousand".