18885035555 has 8 divisors (see below), whose sum is σ = 22663915344. Its totient is φ = 15106780000.

The previous prime is 18885035551. The next prime is 18885035573. The reversal of 18885035555 is 55553058881.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 18885035555 - 2² = 18885035551 is a prime.

It is a super-2 number, since 2×18885035555² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 18885035497 and 18885035506.

It is not an unprimeable number, because it can be changed into a prime (18885035551) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 86696 + ... + 212805.

It is an arithmetic number, because the mean of its divisors is an integer number (2832989418).

Almost surely, 2^18885035555 is an apocalyptic number.

18885035555 is a deficient number, since it is larger than the sum of its proper divisors (3778879789).

18885035555 is a wasteful number, since it uses less digits than its factorization.

18885035555 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 312117.

The product of its (nonzero) digits is 4800000, while the sum is 53.

The spelling of 18885035555 in words is "eighteen billion, eight hundred eighty-five million, thirty-five thousand, five hundred fifty-five".