8661003021080 has 32 divisors (see below), whose sum is σ = 19490062555440. Its totient is φ = 3463902407040.

The previous prime is 8661003021067. The next prime is 8661003021101. The reversal of 8661003021080 is 801203001668.

It is a self number, because there is not a number n which added to its sum of digits gives 8661003021080.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 15306191 + ... + 15861950.

Almost surely, 2^{8661003021080} is an apocalyptic number.

It is an amenable number.

8661003021080 is an abundant number, since it is smaller than the sum of its proper divisors (10829059534360).

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

8661003021080 is a wasteful number, since it uses less digits than its factorization.

8661003021080 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31175099 (or 31175095 counting only the distinct ones).

The product of its (nonzero) digits is 13824, while the sum is 35.

The spelling of 8661003021080 in words is "eight trillion, six hundred sixty-one billion, three million, twenty-one thousand, eighty".