8706111661 has 8 divisors (see below), whose sum is σ = 9507867264. Its totient is φ = 7923221040.

The previous prime is 8706111653. The next prime is 8706111679. The reversal of 8706111661 is 1661116078.

8706111661 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 8706111661 - 2³ = 8706111653 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 8706111661.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8706111611) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4715281 + ... + 4717126.

It is an arithmetic number, because the mean of its divisors is an integer number (1188483408).

Almost surely, 2^8706111661 is an apocalyptic number.

It is an amenable number.

8706111661 is a deficient number, since it is larger than the sum of its proper divisors (801755603).

8706111661 is a wasteful number, since it uses less digits than its factorization.

8706111661 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9432491.

The product of its (nonzero) digits is 12096, while the sum is 37.

The square root of 8706111661 is about 93306.5467210099. The cubic root of 8706111661 is about 2057.1916094144.

The spelling of 8706111661 in words is "eight billion, seven hundred six million, one hundred eleven thousand, six hundred sixty-one".