18501835168340 has 48 divisors (see below), whose sum is σ = 38880511971840. Its totient is φ = 7395657888000.

The previous prime is 18501835168307. The next prime is 18501835168367. The reversal of 18501835168340 is 4386153810581.

It is a super-2 number, since 2×18501835168340² (a number of 27 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 204532841 + ... + 204623279.

It is an arithmetic number, because the mean of its divisors is an integer number (810010666080).

Almost surely, 2^{18501835168340} is an apocalyptic number.

18501835168340 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

18501835168340 is an abundant number, since it is smaller than the sum of its proper divisors (20378676803500).

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

18501835168340 is a wasteful number, since it uses less digits than its factorization.

18501835168340 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 97352 (or 97350 counting only the distinct ones).

The product of its (nonzero) digits is 2764800, while the sum is 53.

The spelling of 18501835168340 in words is "eighteen trillion, five hundred one billion, eight hundred thirty-five million, one hundred sixty-eight thousand, three hundred forty".