16684343501 has 4 divisors (see below), whose sum is σ = 19067821152. Its totient is φ = 14300865852.

The previous prime is 16684343483. The next prime is 16684343519. The reversal of 16684343501 is 10534348661.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is an interprime number because it is at equal distance from previous prime (16684343483) and next prime (16684343519).

It is not a de Polignac number, because 16684343501 - 2¹⁴ = 16684327117 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16684343581) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1191738815 + ... + 1191738828.

It is an arithmetic number, because the mean of its divisors is an integer number (4766955288).

Almost surely, 2^16684343501 is an apocalyptic number.

It is an amenable number.

16684343501 is a deficient number, since it is larger than the sum of its proper divisors (2383477651).

16684343501 is an equidigital number, since it uses as much as digits as its factorization.

16684343501 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2383477650.

The product of its (nonzero) digits is 207360, while the sum is 41.

The spelling of 16684343501 in words is "sixteen billion, six hundred eighty-four million, three hundred forty-three thousand, five hundred one".