18343666011420 has 96 divisors (see below), whose sum is σ = 57504825987840. Its totient is φ = 4854303455040.

The previous prime is 18343666011401. The next prime is 18343666011443. The reversal of 18343666011420 is 2411066634381.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 129584802 + ... + 129726281.

It is an arithmetic number, because the mean of its divisors is an integer number (599008604040).

Almost surely, 2^{18343666011420} is an apocalyptic number.

18343666011420 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

18343666011420 is an abundant number, since it is smaller than the sum of its proper divisors (39161159976420).

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

18343666011420 is a wasteful number, since it uses less digits than its factorization.

18343666011420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 259311232 (or 259311224 counting only the distinct ones).

The product of its (nonzero) digits is 497664, while the sum is 45.

The spelling of 18343666011420 in words is "eighteen trillion, three hundred forty-three billion, six hundred sixty-six million, eleven thousand, four hundred twenty".