16530312206 has 4 divisors (see below), whose sum is σ = 24795468312. Its totient is φ = 8265156102.

The previous prime is 16530312191. The next prime is 16530312251. The reversal of 16530312206 is 60221303561.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 60221303561 = 389 ⋅154810549.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4132578050 + ... + 4132578053.

It is an arithmetic number, because the mean of its divisors is an integer number (6198867078).

Almost surely, 2^16530312206 is an apocalyptic number.

16530312206 is a deficient number, since it is larger than the sum of its proper divisors (8265156106).

16530312206 is an equidigital number, since it uses as much as digits as its factorization.

16530312206 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8265156105.

The product of its (nonzero) digits is 6480, while the sum is 29.

Adding to 16530312206 its reverse (60221303561), we get a palindrome (76751615767).

The spelling of 16530312206 in words is "sixteen billion, five hundred thirty million, three hundred twelve thousand, two hundred six".