79867016180660 has 12 divisors (see below), whose sum is σ = 167720733979428. Its totient is φ = 31946806472256.

The previous prime is 79867016180629. The next prime is 79867016180669. The reversal of 79867016180660 is 6608161076897.

It can be written as a sum of positive squares in 2 ways, for example, as 35238684143524 + 44628332037136 = 5936218^2 + 6680444^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (79867016180669) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1996675404497 + ... + 1996675404536.

It is an arithmetic number, because the mean of its divisors is an integer number (13976727831619).

Almost surely, 2^{79867016180660} is an apocalyptic number.

It is an amenable number.

79867016180660 is an abundant number, since it is smaller than the sum of its proper divisors (87853717798768).

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

79867016180660 is a wasteful number, since it uses less digits than its factorization.

79867016180660 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3993350809042 (or 3993350809040 counting only the distinct ones).

The product of its (nonzero) digits is 36578304, while the sum is 65.

The spelling of 79867016180660 in words is "seventy-nine trillion, eight hundred sixty-seven billion, sixteen million, one hundred eighty thousand, six hundred sixty".