18855502000533 has 24 divisors (see below), whose sum is σ = 29713165266720. Its totient is φ = 11427013452960.

The previous prime is 18855502000499. The next prime is 18855502000597. The reversal of 18855502000533 is 33500020555881.

18855502000533 is a `hidden beast` number, since 18 + 8 + 55 + 50 + 2 + 0 + 0 + 0 + 533 = 666.

It is not a de Polignac number, because 18855502000533 - 2²¹ = 18855499903381 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18855502040533) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2673838 + ... + 6697791.

It is an arithmetic number, because the mean of its divisors is an integer number (1238048552780).

Almost surely, 2^{18855502000533} is an apocalyptic number.

It is an amenable number.

18855502000533 is a deficient number, since it is larger than the sum of its proper divisors (10857663266187).

18855502000533 is a wasteful number, since it uses less digits than its factorization.

18855502000533 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9391969 (or 9391966 counting only the distinct ones).

The product of its (nonzero) digits is 720000, while the sum is 45.

The spelling of 18855502000533 in words is "eighteen trillion, eight hundred fifty-five billion, five hundred two million, five hundred thirty-three", and thus it is an aban number.