672322165616615 has 32 divisors (see below), whose sum is σ = 820762001832960. Its totient is φ = 528619444480000.

The previous prime is 672322165616551. The next prime is 672322165616617. The reversal of 672322165616615 is 516616561223276.

It is not a de Polignac number, because 672322165616615 - 2⁶ = 672322165616551 is a prime.

It is a super-4 number, since 4×672322165616615⁴ (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 pernicious number, because its binary representation contains a prime number (31) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1480401146 + ... + 1480855224.

It is an arithmetic number, because the mean of its divisors is an integer number (25648812557280).

Almost surely, 2^{672322165616615} is an apocalyptic number.

672322165616615 is a deficient number, since it is larger than the sum of its proper divisors (148439836216345).

672322165616615 is a wasteful number, since it uses less digits than its factorization.

672322165616615 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 475723.

The product of its digits is 32659200, while the sum is 59.

The spelling of 672322165616615 in words is "six hundred seventy-two trillion, three hundred twenty-two billion, one hundred sixty-five million, six hundred sixteen thousand, six hundred fifteen".