16685370000038 has 8 divisors (see below), whose sum is σ = 25610102790888. Its totient is φ = 8148669069744.

The previous prime is 16685369999993. The next prime is 16685370000053. The reversal of 16685370000038 is 83000007358661.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a junction number, because it is equal to n+sod(n) for n = 16685369999947 and 16685370000001.

It is a congruent number.

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 in 3 ways as a sum of consecutive naturals, for example, 97007965031 + ... + 97007965202.

It is an arithmetic number, because the mean of its divisors is an integer number (3201262848861).

Almost surely, 2^{16685370000038} is an apocalyptic number.

16685370000038 is a deficient number, since it is larger than the sum of its proper divisors (8924732790850).

16685370000038 is a wasteful number, since it uses less digits than its factorization.

16685370000038 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 194015930278.

The product of its (nonzero) digits is 725760, while the sum is 47.

Adding to 16685370000038 its reverse (83000007358661), we get a palindrome (99685377358699).

The spelling of 16685370000038 in words is "sixteen trillion, six hundred eighty-five billion, three hundred seventy million, thirty-eight", and thus it is an aban number.