672322165616616 has 64 divisors (see below), whose sum is σ = 1702211494137600. Its totient is φ = 221253678067968.

The previous prime is 672322165616551. The next prime is 672322165616617. The reversal of 672322165616616 is 616616561223276.

It is a super-4 number, since 4×672322165616616⁴ (a number of 60 digits) contains 4444 as substring. Note that it is a super-d number also for d = 3.

It is a self number, because there is not a number n which added to its sum of digits gives 672322165616616.

It is not an unprimeable number, because it can be changed into a prime (672322165616617) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 11282730 + ... + 38365926.

It is an arithmetic number, because the mean of its divisors is an integer number (26597054595900).

Almost surely, 2^{672322165616616} is an apocalyptic number.

It is an amenable number.

672322165616616 is an abundant number, since it is smaller than the sum of its proper divisors (1029889328520984).

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

672322165616616 is a wasteful number, since it uses less digits than its factorization.

672322165616616 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27096378 (or 27096374 counting only the distinct ones).

The product of its digits is 39191040, while the sum is 60.

The spelling of 672322165616616 in words is "six hundred seventy-two trillion, three hundred twenty-two billion, one hundred sixty-five million, six hundred sixteen thousand, six hundred sixteen".