16642682544556 has 6 divisors (see below), whose sum is σ = 29124694452980. Its totient is φ = 8321341272276.

The previous prime is 16642682544517. The next prime is 16642682544563. The reversal of 16642682544556 is 65544528624661.

It is an unprimeable number.

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 as a sum of consecutive naturals, namely, 2080335318066 + ... + 2080335318073.

Almost surely, 2^{16642682544556} is an apocalyptic number.

It is an amenable number.

16642682544556 is a deficient number, since it is larger than the sum of its proper divisors (12482011908424).

16642682544556 is a wasteful number, since it uses less digits than its factorization.

16642682544556 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4160670636143 (or 4160670636141 counting only the distinct ones).

The product of its digits is 331776000, while the sum is 64.

The spelling of 16642682544556 in words is "sixteen trillion, six hundred forty-two billion, six hundred eighty-two million, five hundred forty-four thousand, five hundred fifty-six".