18066935256 has 24 divisors (see below), whose sum is σ = 45168984420. Its totient is φ = 6022092256.

The previous prime is 18066935209. The next prime is 18066935329. The reversal of 18066935256 is 65253966081.

It is a tau number, because it is divible by the number of its divisors (24).

It is a junction number, because it is equal to n+sod(n) for n = 18066935199 and 18066935208.

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 5 ways as a sum of consecutive naturals, for example, 644770 + ... + 672206.

Almost surely, 2^18066935256 is an apocalyptic number.

It is an amenable number.

18066935256 is an abundant number, since it is smaller than the sum of its proper divisors (27102049164).

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

18066935256 is an frugal number, since it uses more digits than its factorization.

18066935256 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 54883 (or 27442 counting only the distinct ones).

The product of its (nonzero) digits is 2332800, while the sum is 51.

The spelling of 18066935256 in words is "eighteen billion, sixty-six million, nine hundred thirty-five thousand, two hundred fifty-six".