16315043522 has 18 divisors (see below), whose sum is σ = 24657934329. Its totient is φ = 8096195160.

The previous prime is 16315043483. The next prime is 16315043567. The reversal of 16315043522 is 22534051361.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 9860688601 + 6454354921 = 99301^2 + 80339^2 .

It is an ABA number since it can be written as A⋅B^A, here for A=2, B=90319.

It is a Duffinian number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 32695229 + ... + 32695727.

Almost surely, 2^16315043522 is an apocalyptic number.

16315043522 is a deficient number, since it is larger than the sum of its proper divisors (8342890807).

16315043522 is an frugal number, since it uses more digits than its factorization.

16315043522 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1362 (or 682 counting only the distinct ones).

The product of its (nonzero) digits is 21600, while the sum is 32.

Multiplying 16315043522 by its sum of digits (32), we get a square (522081392704 = 722552²).

Adding to 16315043522 its reverse (22534051361), we get a palindrome (38849094883).

The spelling of 16315043522 in words is "sixteen billion, three hundred fifteen million, forty-three thousand, five hundred twenty-two".