8661077085 has 16 divisors (see below), whose sum is σ = 13864608576. Its totient is φ = 4616946048.

The previous prime is 8661077083. The next prime is 8661077101. The reversal of 8661077085 is 5807701668.

It is not a de Polignac number, because 8661077085 - 2¹ = 8661077083 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8661077083) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 112024 + ... + 172833.

It is an arithmetic number, because the mean of its divisors is an integer number (866538036).

Almost surely, 2^8661077085 is an apocalyptic number.

It is an amenable number.

8661077085 is a deficient number, since it is larger than the sum of its proper divisors (5203531491).

8661077085 is a wasteful number, since it uses less digits than its factorization.

8661077085 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 286892.

The product of its (nonzero) digits is 564480, while the sum is 48.

The square root of 8661077085 is about 93064.9079137781. The cubic root of 8661077085 is about 2053.6383601190.

The spelling of 8661077085 in words is "eight billion, six hundred sixty-one million, seventy-seven thousand, eighty-five".