18066881404 has 192 divisors, whose sum is σ = 40000407552. Its totient is φ = 7026739200.

The previous prime is 18066881377. The next prime is 18066881407. The reversal of 18066881404 is 40418866081.

It is a super-2 number, since 2×18066881404² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18066881407) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 40782807 + ... + 40783249.

It is an arithmetic number, because the mean of its divisors is an integer number (208335456).

Almost surely, 2^18066881404 is an apocalyptic number.

It is an amenable number.

18066881404 is an abundant number, since it is smaller than the sum of its proper divisors (21933526148).

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

18066881404 is a wasteful number, since it uses less digits than its factorization.

18066881404 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 596 (or 594 counting only the distinct ones).

The product of its (nonzero) digits is 294912, while the sum is 46.

The spelling of 18066881404 in words is "eighteen billion, sixty-six million, eight hundred eighty-one thousand, four hundred four".