16906341913 has 4 divisors (see below), whose sum is σ = 16908261300. Its totient is φ = 16904422528.

The previous prime is 16906341869. The next prime is 16906341919. The reversal of 16906341913 is 31914360961.

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 7234012809 + 9672329104 = 85053^2 + 98348^2 .

It is a cyclic number.

It is not a de Polignac number, because 16906341913 - 2⁹ = 16906341401 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 16906341913.

It is not an unprimeable number, because it can be changed into a prime (16906341919) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 946420 + ... + 964117.

It is an arithmetic number, because the mean of its divisors is an integer number (4227065325).

Almost surely, 2^16906341913 is an apocalyptic number.

It is an amenable number.

16906341913 is a deficient number, since it is larger than the sum of its proper divisors (1919387).

16906341913 is an equidigital number, since it uses as much as digits as its factorization.

16906341913 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1919386.

The product of its (nonzero) digits is 104976, while the sum is 43.

The spelling of 16906341913 in words is "sixteen billion, nine hundred six million, three hundred forty-one thousand, nine hundred thirteen".