16505240026 has 16 divisors (see below), whose sum is σ = 27202885920. Its totient is φ = 7448406480.

The previous prime is 16505240021. The next prime is 16505240033. The reversal of 16505240026 is 62004250561.

It is a self number, because there is not a number n which added to its sum of digits gives 16505240026.

It is not an unprimeable number, because it can be changed into a prime (16505240021) 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 7 ways as a sum of consecutive naturals, for example, 2695641 + ... + 2701756.

It is an arithmetic number, because the mean of its divisors is an integer number (1700180370).

Almost surely, 2^16505240026 is an apocalyptic number.

16505240026 is a deficient number, since it is larger than the sum of its proper divisors (10697645894).

16505240026 is a wasteful number, since it uses less digits than its factorization.

16505240026 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5397549.

The product of its (nonzero) digits is 14400, while the sum is 31.

Adding to 16505240026 its reverse (62004250561), we get a palindrome (78509490587).

The spelling of 16505240026 in words is "sixteen billion, five hundred five million, two hundred forty thousand, twenty-six".