16012215806 has 8 divisors (see below), whose sum is σ = 24347342064. Its totient is φ = 7896435120.

The previous prime is 16012215797. The next prime is 16012215823. The reversal of 16012215806 is 60851221061.

It is a sphenic number, since it is the product of 3 distinct primes.

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, 54836210 + ... + 54836501.

It is an arithmetic number, because the mean of its divisors is an integer number (3043417758).

Almost surely, 2^16012215806 is an apocalyptic number.

16012215806 is a deficient number, since it is larger than the sum of its proper divisors (8335126258).

16012215806 is a wasteful number, since it uses less digits than its factorization.

16012215806 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 109672786.

The product of its (nonzero) digits is 5760, while the sum is 32.

Adding to 16012215806 its reverse (60851221061), we get a palindrome (76863436867).

The spelling of 16012215806 in words is "sixteen billion, twelve million, two hundred fifteen thousand, eight hundred six".