16206909242 has 4 divisors (see below), whose sum is σ = 24310363866. Its totient is φ = 8103454620.

The previous prime is 16206909193. The next prime is 16206909331. The reversal of 16206909242 is 24290960261.

It is a happy number.

16206909242 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 24290960261 = 23 ⋅1056128707.

It can be written as a sum of positive squares in only one way, i.e., 12354100201 + 3852809041 = 111149^2 + 62071^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 16206909242.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4051727309 + ... + 4051727312.

Almost surely, 2^16206909242 is an apocalyptic number.

16206909242 is a deficient number, since it is larger than the sum of its proper divisors (8103454624).

16206909242 is an equidigital number, since it uses as much as digits as its factorization.

16206909242 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8103454623.

The product of its (nonzero) digits is 93312, while the sum is 41.

The spelling of 16206909242 in words is "sixteen billion, two hundred six million, nine hundred nine thousand, two hundred forty-two".