16700016670038 has 144 divisors (see below), whose sum is σ = 41192290208160. Its totient is φ = 4859826529536.

The previous prime is 16700016670013. The next prime is 16700016670081. The reversal of 16700016670038 is 83007661000761.

It is a junction number, because it is equal to n+sod(n) for n = 16700016669975 and 16700016670002.

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 71 ways as a sum of consecutive naturals, for example, 10259031 + ... + 11774877.

It is an arithmetic number, because the mean of its divisors is an integer number (286057570890).

Almost surely, 2^{16700016670038} is an apocalyptic number.

16700016670038 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 16700016670038, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (20596145104080).

16700016670038 is an abundant number, since it is smaller than the sum of its proper divisors (24492273538122).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

16700016670038 is a wasteful number, since it uses less digits than its factorization.

16700016670038 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1516003 (or 1515977 counting only the distinct ones).

The product of its (nonzero) digits is 254016, while the sum is 45.

Adding to 16700016670038 its reverse (83007661000761), we get a palindrome (99707677670799).

The spelling of 16700016670038 in words is "sixteen trillion, seven hundred billion, sixteen million, six hundred seventy thousand, thirty-eight".