16885151249638 has 12 divisors (see below), whose sum is σ = 29462865956172. Its totient is φ = 7236493392660.

The previous prime is 16885151249599. The next prime is 16885151249689. The reversal of 16885151249638 is 83694215158861.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 86148730768 + ... + 86148730963.

It is an arithmetic number, because the mean of its divisors is an integer number (2455238829681).

Almost surely, 2^{16885151249638} is an apocalyptic number.

16885151249638 is a deficient number, since it is larger than the sum of its proper divisors (12577714706534).

16885151249638 is a wasteful number, since it uses less digits than its factorization.

16885151249638 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 172297461747 (or 172297461740 counting only the distinct ones).

The product of its digits is 99532800, while the sum is 67.

The spelling of 16885151249638 in words is "sixteen trillion, eight hundred eighty-five billion, one hundred fifty-one million, two hundred forty-nine thousand, six hundred thirty-eight".