16842212030405 has 4 divisors (see below), whose sum is σ = 20210654436492. Its totient is φ = 13473769624320.

The previous prime is 16842212030383. The next prime is 16842212030429. The reversal of 16842212030405 is 50403021224861.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 2016008099044 + 14826203931361 = 1419862^2 + 3850481^2 .

It is not a de Polignac number, because 16842212030405 - 2²⁴ = 16842195253189 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1684221203036 + ... + 1684221203045.

It is an arithmetic number, because the mean of its divisors is an integer number (5052663609123).

Almost surely, 2^{16842212030405} is an apocalyptic number.

It is an amenable number.

16842212030405 is a deficient number, since it is larger than the sum of its proper divisors (3368442406087).

16842212030405 is an equidigital number, since it uses as much as digits as its factorization.

16842212030405 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3368442406086.

The product of its (nonzero) digits is 92160, while the sum is 38.

The spelling of 16842212030405 in words is "sixteen trillion, eight hundred forty-two billion, two hundred twelve million, thirty thousand, four hundred five".