16456023530 has 32 divisors (see below), whose sum is σ = 30196941264. Its totient is φ = 6454529536.

The previous prime is 16456023491. The next prime is 16456023533. The reversal of 16456023530 is 3532065461.

It can be written as a sum of positive squares in 8 ways, for example, as 10383406201 + 6072617329 = 101899^2 + 77927^2 .

It is not an unprimeable number, because it can be changed into a prime (16456023533) 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 15 ways as a sum of consecutive naturals, for example, 1037822 + ... + 1053558.

Almost surely, 2^16456023530 is an apocalyptic number.

16456023530 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

16456023530 is a deficient number, since it is larger than the sum of its proper divisors (13740917734).

16456023530 is a wasteful number, since it uses less digits than its factorization.

16456023530 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17770.

The product of its (nonzero) digits is 64800, while the sum is 35.

Adding to 16456023530 its reverse (3532065461), we get a palindrome (19988088991).

The spelling of 16456023530 in words is "sixteen billion, four hundred fifty-six million, twenty-three thousand, five hundred thirty".