89609842666 has 8 divisors (see below), whose sum is σ = 138750724224. Its totient is φ = 43359601260.

The previous prime is 89609842661. The next prime is 89609842669. The reversal of 89609842666 is 66624890698.

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

It is a junction number, because it is equal to n+sod(n) for n = 89609842598 and 89609842607.

It is not an unprimeable number, because it can be changed into a prime (89609842661) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 722659960 + ... + 722660083.

It is an arithmetic number, because the mean of its divisors is an integer number (17343840528).

Almost surely, 2^89609842666 is an apocalyptic number.

89609842666 is a deficient number, since it is larger than the sum of its proper divisors (49140881558).

89609842666 is a wasteful number, since it uses less digits than its factorization.

89609842666 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1445320076.

The product of its (nonzero) digits is 53747712, while the sum is 64.

The spelling of 89609842666 in words is "eighty-nine billion, six hundred nine million, eight hundred forty-two thousand, six hundred sixty-six".