16505250535 has 8 divisors (see below), whose sum is σ = 19833325920. Its totient is φ = 13186183584.

The previous prime is 16505250533. The next prime is 16505250551. The reversal of 16505250535 is 53505250561.

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

It is a cyclic number.

It is not a de Polignac number, because 16505250535 - 2¹ = 16505250533 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 16505250494 and 16505250503.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16505250533) 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, 2248075 + ... + 2255404.

It is an arithmetic number, because the mean of its divisors is an integer number (2479165740).

Almost surely, 2^16505250535 is an apocalyptic number.

16505250535 is a deficient number, since it is larger than the sum of its proper divisors (3328075385).

16505250535 is an equidigital number, since it uses as much as digits as its factorization.

16505250535 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4504217.

The product of its (nonzero) digits is 112500, while the sum is 37.

The spelling of 16505250535 in words is "sixteen billion, five hundred five million, two hundred fifty thousand, five hundred thirty-five".