16319625646 has 8 divisors (see below), whose sum is σ = 24490772784. Its totient is φ = 8156034720.

The previous prime is 16319625617. The next prime is 16319625653. The reversal of 16319625646 is 64652691361.

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

It is a self number, because there is not a number n which added to its sum of digits gives 16319625646.

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, 1883650 + ... + 1892293.

It is an arithmetic number, because the mean of its divisors is an integer number (3061346598).

Almost surely, 2^16319625646 is an apocalyptic number.

16319625646 is a deficient number, since it is larger than the sum of its proper divisors (8171147138).

16319625646 is a wasteful number, since it uses less digits than its factorization.

16319625646 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3778106.

The product of its digits is 1399680, while the sum is 49.

The spelling of 16319625646 in words is "sixteen billion, three hundred nineteen million, six hundred twenty-five thousand, six hundred forty-six".