16398388622 has 32 divisors (see below), whose sum is σ = 30673154304. Its totient is φ = 6387724800.

The previous prime is 16398388619. The next prime is 16398388631. The reversal of 16398388622 is 22688389361.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1324553 + ... + 1336875.

It is an arithmetic number, because the mean of its divisors is an integer number (958536072).

Almost surely, 2^16398388622 is an apocalyptic number.

16398388622 is a deficient number, since it is larger than the sum of its proper divisors (14274765682).

16398388622 is a wasteful number, since it uses less digits than its factorization.

16398388622 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20984.

The product of its digits is 5971968, while the sum is 56.

The spelling of 16398388622 in words is "sixteen billion, three hundred ninety-eight million, three hundred eighty-eight thousand, six hundred twenty-two".