672322165616647 has 8 divisors (see below), whose sum is σ = 827473434605216. Its totient is φ = 531947207960352.

The previous prime is 672322165616617. The next prime is 672322165616659. The reversal of 672322165616647 is 746616561223276.

672322165616647 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 672322165616647 - 2³¹ = 672320018132999 is a prime.

It is a super-4 number, since 4×672322165616647⁴ (a number of 60 digits) contains 4444 as substring. Note that it is a super-d number also for d = 3.

It is a congruent number.

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

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3694077832968 + ... + 3694077833149.

It is an arithmetic number, because the mean of its divisors is an integer number (103434179325652).

Almost surely, 2^{672322165616647} is an apocalyptic number.

672322165616647 is a deficient number, since it is larger than the sum of its proper divisors (155151268988569).

672322165616647 is a wasteful number, since it uses less digits than its factorization.

672322165616647 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7388155666137.

The product of its digits is 182891520, while the sum is 64.

The spelling of 672322165616647 in words is "six hundred seventy-two trillion, three hundred twenty-two billion, one hundred sixty-five million, six hundred sixteen thousand, six hundred forty-seven".