18500132663 has 16 divisors (see below), whose sum is σ = 19204413696. Its totient is φ = 17802789120.

The previous prime is 18500132657. The next prime is 18500132699. The reversal of 18500132663 is 36623100581.

It is not a de Polignac number, because 18500132663 - 2⁴ = 18500132647 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18500132633) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 8066945 + ... + 8069237.

It is an arithmetic number, because the mean of its divisors is an integer number (1200275856).

Almost surely, 2^18500132663 is an apocalyptic number.

18500132663 is a deficient number, since it is larger than the sum of its proper divisors (704281033).

18500132663 is a wasteful number, since it uses less digits than its factorization.

18500132663 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3674.

The product of its (nonzero) digits is 25920, while the sum is 35.

The spelling of 18500132663 in words is "eighteen billion, five hundred million, one hundred thirty-two thousand, six hundred sixty-three".