18036612000 has 576 divisors, whose sum is σ = 71776793088. Its totient is φ = 4250880000.

The previous prime is 18036611987. The next prime is 18036612067. The reversal of 18036612000 is 21663081.

18036612000 is a `hidden beast` number, since 18 + 0 + 36 + 612 + 0 + 0 + 0 = 666.

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, 14651385 + ... + 14652615.

It is an arithmetic number, because the mean of its divisors is an integer number (124612488).

Almost surely, 2^18036612000 is an apocalyptic number.

18036612000 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 18036612000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (35888396544).

18036612000 is an abundant number, since it is smaller than the sum of its proper divisors (53740181088).

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

18036612000 is a wasteful number, since it uses less digits than its factorization.

18036612000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1310 (or 1289 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 27.

It can be divided in two parts, 18036 and 612000, that added together give a palindrome (630036).

The spelling of 18036612000 in words is "eighteen billion, thirty-six million, six hundred twelve thousand".