16556136322324 has 6 divisors (see below), whose sum is σ = 28973238564074. Its totient is φ = 8278068161160.

The previous prime is 16556136322307. The next prime is 16556136322337. The reversal of 16556136322324 is 42322363165561.

It can be written as a sum of positive squares in only one way, i.e., 13556520158724 + 2999616163600 = 3681918^2 + 1731940^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2069517040287 + ... + 2069517040294.

Almost surely, 2^{16556136322324} is an apocalyptic number.

It is an amenable number.

16556136322324 is a deficient number, since it is larger than the sum of its proper divisors (12417102241750).

16556136322324 is a wasteful number, since it uses less digits than its factorization.

16556136322324 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4139034080585 (or 4139034080583 counting only the distinct ones).

The product of its digits is 4665600, while the sum is 49.

Adding to 16556136322324 its reverse (42322363165561), we get a palindrome (58878499487885).

The spelling of 16556136322324 in words is "sixteen trillion, five hundred fifty-six billion, one hundred thirty-six million, three hundred twenty-two thousand, three hundred twenty-four".