16722643340 has 48 divisors (see below), whose sum is σ = 37837809408. Its totient is φ = 6171427584.

The previous prime is 16722643241. The next prime is 16722643349. The reversal of 16722643340 is 4334622761.

It is a junction number, because it is equal to n+sod(n) for n = 16722643294 and 16722643303.

It is not an unprimeable number, because it can be changed into a prime (16722643349) 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 15 ways as a sum of consecutive naturals, for example, 542174 + ... + 572186.

It is an arithmetic number, because the mean of its divisors is an integer number (788287696).

Almost surely, 2^16722643340 is an apocalyptic number.

16722643340 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

16722643340 is an abundant number, since it is smaller than the sum of its proper divisors (21115166068).

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

16722643340 is a wasteful number, since it uses less digits than its factorization.

16722643340 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32178 (or 32176 counting only the distinct ones).

The product of its (nonzero) digits is 145152, while the sum is 38.

The spelling of 16722643340 in words is "sixteen billion, seven hundred twenty-two million, six hundred forty-three thousand, three hundred forty".