8579506661 has 8 divisors (see below), whose sum is σ = 9399633984. Its totient is φ = 7766074720.

The previous prime is 8579506657. The next prime is 8579506679. The reversal of 8579506661 is 1666059758.

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 8579506661 - 2² = 8579506657 is a prime.

It is a super-2 number, since 2×8579506661² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8579506631) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1671161 + ... + 1676286.

It is an arithmetic number, because the mean of its divisors is an integer number (1174954248).

Almost surely, 2^8579506661 is an apocalyptic number.

It is an amenable number.

8579506661 is a deficient number, since it is larger than the sum of its proper divisors (820127323).

8579506661 is a wasteful number, since it uses less digits than its factorization.

8579506661 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3347691.

The product of its (nonzero) digits is 2721600, while the sum is 53.

The square root of 8579506661 is about 92625.6263730508. The cubic root of 8579506661 is about 2047.1709269219.

The spelling of 8579506661 in words is "eight billion, five hundred seventy-nine million, five hundred six thousand, six hundred sixty-one".