8661122498 has 90 divisors (see below), whose sum is σ = 16306416441. Its totient is φ = 3449339712.

The previous prime is 8661122473. The next prime is 8661122527. The reversal of 8661122498 is 8942211668.

It can be written as a sum of positive squares in 2 ways, for example, as 7926875089 + 734247409 = 89033^2 + 27097^2 .

It is an ABA number since it can be written as A⋅B^A, here for A=2, B=65807.

It is an unprimeable number.

It is a polite number, since it can be written in 44 ways as a sum of consecutive naturals, for example, 109634423 + ... + 109634501.

Almost surely, 2^8661122498 is an apocalyptic number.

8661122498 is a deficient number, since it is larger than the sum of its proper divisors (7645293943).

8661122498 is an frugal number, since it uses more digits than its factorization.

8661122498 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 222 (or 105 counting only the distinct ones).

The product of its digits is 331776, while the sum is 47.

The square root of 8661122498 is about 93065.1518990863. The cubic root of 8661122498 is about 2053.6419494230.

The spelling of 8661122498 in words is "eight billion, six hundred sixty-one million, one hundred twenty-two thousand, four hundred ninety-eight".