66732520577060 has 24 divisors (see below), whose sum is σ = 150918161921016. Its totient is φ = 24639699905280.

The previous prime is 66732520577039. The next prime is 66732520577077. The reversal of 66732520577060 is 6077502523766.

It can be written as a sum of positive squares in 4 ways, for example, as 8564320308196 + 58168200268864 = 2926486^2 + 7626808^2 .

It is a junction number, because it is equal to n+sod(n) for n = 66732520576987 and 66732520577005.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 128331770081 + ... + 128331770600.

It is an arithmetic number, because the mean of its divisors is an integer number (6288256746709).

Almost surely, 2^{66732520577060} is an apocalyptic number.

It is an amenable number.

66732520577060 is an abundant number, since it is smaller than the sum of its proper divisors (84185641343956).

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

66732520577060 is a wasteful number, since it uses less digits than its factorization.

66732520577060 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 256663540703 (or 256663540701 counting only the distinct ones).

The product of its (nonzero) digits is 22226400, while the sum is 56.

The spelling of 66732520577060 in words is "sixty-six trillion, seven hundred thirty-two billion, five hundred twenty million, five hundred seventy-seven thousand, sixty".