16311722512 has 20 divisors (see below), whose sum is σ = 32338939600. Its totient is φ = 7966189728.

The previous prime is 16311722489. The next prime is 16311722533. The reversal of 16311722512 is 21522711361.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 11853762 + ... + 11855137.

It is an arithmetic number, because the mean of its divisors is an integer number (1616946980).

Almost surely, 2^16311722512 is an apocalyptic number.

It is an amenable number.

16311722512 is a deficient number, since it is larger than the sum of its proper divisors (16027217088).

16311722512 is a wasteful number, since it uses less digits than its factorization.

16311722512 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23708950 (or 23708944 counting only the distinct ones).

The product of its digits is 5040, while the sum is 31.

The spelling of 16311722512 in words is "sixteen billion, three hundred eleven million, seven hundred twenty-two thousand, five hundred twelve".