80622646660 has 12 divisors (see below), whose sum is σ = 169307558028. Its totient is φ = 32249058656.

The previous prime is 80622646651. The next prime is 80622646679. The reversal of 80622646660 is 6664622608.

It can be written as a sum of positive squares in 2 ways, for example, as 14132929924 + 66489716736 = 118882^2 + 257856^2 .

It is a super-2 number, since 2×80622646660² (a number of 23 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 80622646660.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2015566147 + ... + 2015566186.

It is an arithmetic number, because the mean of its divisors is an integer number (14108963169).

Almost surely, 2^80622646660 is an apocalyptic number.

It is an amenable number.

80622646660 is an abundant number, since it is smaller than the sum of its proper divisors (88684911368).

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

80622646660 is a wasteful number, since it uses less digits than its factorization.

80622646660 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4031132342 (or 4031132340 counting only the distinct ones).

The product of its (nonzero) digits is 995328, while the sum is 46.

The spelling of 80622646660 in words is "eighty billion, six hundred twenty-two million, six hundred forty-six thousand, six hundred sixty".