18133603669720 has 192 divisors, whose sum is σ = 51783302799360. Its totient is φ = 5651306438400.

The previous prime is 18133603669673. The next prime is 18133603669733. The reversal of 18133603669720 is 2796630633181.

It is a Harshad number since it is a multiple of its sum of digits (55).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 182067535 + ... + 182167105.

It is an arithmetic number, because the mean of its divisors is an integer number (269704702080).

Almost surely, 2^{18133603669720} is an apocalyptic number.

18133603669720 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 18133603669720, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (25891651399680).

18133603669720 is an abundant number, since it is smaller than the sum of its proper divisors (33649699129640).

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

18133603669720 is a wasteful number, since it uses less digits than its factorization.

18133603669720 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 108054 (or 108043 counting only the distinct ones).

The product of its (nonzero) digits is 5878656, while the sum is 55.

The spelling of 18133603669720 in words is "eighteen trillion, one hundred thirty-three billion, six hundred three million, six hundred sixty-nine thousand, seven hundred twenty".