16140450505 has 32 divisors (see below), whose sum is σ = 21604060800. Its totient is φ = 11504212992.

The previous prime is 16140450503. The next prime is 16140450563. The reversal of 16140450505 is 50505404161.

16140450505 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a cyclic number.

It is not a de Polignac number, because 16140450505 - 2¹ = 16140450503 is a prime.

It is not an unprimeable number, because it can be changed into a prime (16140450503) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2611599 + ... + 2617771.

It is an arithmetic number, because the mean of its divisors is an integer number (675126900).

Almost surely, 2^16140450505 is an apocalyptic number.

It is an amenable number.

16140450505 is a deficient number, since it is larger than the sum of its proper divisors (5463610295).

16140450505 is a wasteful number, since it uses less digits than its factorization.

16140450505 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7833.

The product of its (nonzero) digits is 12000, while the sum is 31.

Adding to 16140450505 its reverse (50505404161), we get a palindrome (66645854666).

The spelling of 16140450505 in words is "sixteen billion, one hundred forty million, four hundred fifty thousand, five hundred five".