16505650263 has 16 divisors (see below), whose sum is σ = 22499078400. Its totient is φ = 10760392896.

The previous prime is 16505650223. The next prime is 16505650277. The reversal of 16505650263 is 36205650561.

It is not a de Polignac number, because 16505650263 - 2²² = 16501455959 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16505650223) 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, 272163 + ... + 327236.

It is an arithmetic number, because the mean of its divisors is an integer number (1406192400).

Almost surely, 2^16505650263 is an apocalyptic number.

16505650263 is a deficient number, since it is larger than the sum of its proper divisors (5993428137).

16505650263 is a wasteful number, since it uses less digits than its factorization.

16505650263 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 599606.

The product of its (nonzero) digits is 162000, while the sum is 39.

The spelling of 16505650263 in words is "sixteen billion, five hundred five million, six hundred fifty thousand, two hundred sixty-three".