16449822621968 has 40 divisors (see below), whose sum is σ = 33282813888576. Its totient is φ = 7861259120000.

The previous prime is 16449822621961. The next prime is 16449822622003. The reversal of 16449822621968 is 86912622894461.

It is a junction number, because it is equal to n+sod(n) for n = 16449822621898 and 16449822621907.

It is not an unprimeable number, because it can be changed into a prime (16449822621961) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 16700558 + ... + 17658093.

Almost surely, 2^{16449822621968} is an apocalyptic number.

It is an amenable number.

16449822621968 is an abundant number, since it is smaller than the sum of its proper divisors (16832991266608).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

16449822621968 is a wasteful number, since it uses less digits than its factorization.

16449822621968 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 34359983 (or 34359977 counting only the distinct ones).

The product of its digits is 143327232, while the sum is 68.

The spelling of 16449822621968 in words is "sixteen trillion, four hundred forty-nine billion, eight hundred twenty-two million, six hundred twenty-one thousand, nine hundred sixty-eight".