16139646806 has 16 divisors (see below), whose sum is σ = 24259811040. Its totient is φ = 8053061760.

The previous prime is 16139646781. The next prime is 16139646811. The reversal of 16139646806 is 60864693161.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2262926 + ... + 2270046.

It is an arithmetic number, because the mean of its divisors is an integer number (1516238190).

Almost surely, 2^16139646806 is an apocalyptic number.

16139646806 is a deficient number, since it is larger than the sum of its proper divisors (8120164234).

16139646806 is a wasteful number, since it uses less digits than its factorization.

16139646806 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9319.

The product of its (nonzero) digits is 1119744, while the sum is 50.

The spelling of 16139646806 in words is "sixteen billion, one hundred thirty-nine million, six hundred forty-six thousand, eight hundred six".