16442667617268 has 12 divisors (see below), whose sum is σ = 38366224440320. Its totient is φ = 5480889205752.

The previous prime is 16442667617263. The next prime is 16442667617303. The reversal of 16442667617268 is 86271676624461.

It is a tau number, because it is divible by the number of its divisors (12).

It is a super-3 number, since 3×16442667617268³ (a number of 41 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a junction number, because it is equal to n+sod(n) for n = 16442667617199 and 16442667617208.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16442667617263) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 685111150708 + ... + 685111150731.

Almost surely, 2^{16442667617268} is an apocalyptic number.

It is an amenable number.

16442667617268 is an abundant number, since it is smaller than the sum of its proper divisors (21923556823052).

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

16442667617268 is a wasteful number, since it uses less digits than its factorization.

16442667617268 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1370222301446 (or 1370222301444 counting only the distinct ones).

The product of its digits is 195084288, while the sum is 66.

The spelling of 16442667617268 in words is "sixteen trillion, four hundred forty-two billion, six hundred sixty-seven million, six hundred seventeen thousand, two hundred sixty-eight".