80555050564 has 12 divisors (see below), whose sum is σ = 141248299500. Its totient is φ = 40198393568.

The previous prime is 80555050561. The next prime is 80555050577. The reversal of 80555050564 is 46505055508.

It can be written as a sum of positive squares in 2 ways, for example, as 31895102464 + 48659948100 = 178592^2 + 220590^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 80555050564.

It is not an unprimeable number, because it can be changed into a prime (80555050561) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 19780639 + ... + 19784710.

It is an arithmetic number, because the mean of its divisors is an integer number (11770691625).

Almost surely, 2^80555050564 is an apocalyptic number.

It is an amenable number.

80555050564 is a deficient number, since it is larger than the sum of its proper divisors (60693248936).

80555050564 is a wasteful number, since it uses less digits than its factorization.

80555050564 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 39565862 (or 39565860 counting only the distinct ones).

The product of its (nonzero) digits is 600000, while the sum is 43.

The spelling of 80555050564 in words is "eighty billion, five hundred fifty-five million, fifty thousand, five hundred sixty-four".