18081800152 has 64 divisors (see below), whose sum is σ = 38126914560. Its totient is φ = 7976707200.

The previous prime is 18081800141. The next prime is 18081800153. The reversal of 18081800152 is 25100818081.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18081800153) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5526277 + ... + 5529547.

It is an arithmetic number, because the mean of its divisors is an integer number (595733040).

Almost surely, 2^18081800152 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 18081800152, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (19063457280).

18081800152 is an abundant number, since it is smaller than the sum of its proper divisors (20045114408).

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

18081800152 is a wasteful number, since it uses less digits than its factorization.

18081800152 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5624 (or 5620 counting only the distinct ones).

The product of its (nonzero) digits is 5120, while the sum is 34.

The spelling of 18081800152 in words is "eighteen billion, eighty-one million, eight hundred thousand, one hundred fifty-two".