16855021703 has 8 divisors (see below), whose sum is σ = 18331281696. Its totient is φ = 15404436000.

The previous prime is 16855021693. The next prime is 16855021709. The reversal of 16855021703 is 30712055861.

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

It is a cyclic number.

It is not a de Polignac number, because 16855021703 - 2²⁶ = 16787912839 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16855021709) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6417203 + ... + 6419828.

It is an arithmetic number, because the mean of its divisors is an integer number (2291410212).

Almost surely, 2^16855021703 is an apocalyptic number.

16855021703 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

16855021703 is a deficient number, since it is larger than the sum of its proper divisors (1476259993).

16855021703 is a wasteful number, since it uses less digits than its factorization.

16855021703 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12837145.

The product of its (nonzero) digits is 50400, while the sum is 38.

The spelling of 16855021703 in words is "sixteen billion, eight hundred fifty-five million, twenty-one thousand, seven hundred three".