89661606177 has 32 divisors (see below), whose sum is σ = 140470235136. Its totient is φ = 50152737600.

The previous prime is 89661606137. The next prime is 89661606197. The reversal of 89661606177 is 77160616698.

It is not a de Polignac number, because 89661606177 - 2¹¹ = 89661604129 is a prime.

It is not an unprimeable number, because it can be changed into a prime (89661606137) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 4009008 + ... + 4031310.

It is an arithmetic number, because the mean of its divisors is an integer number (4389694848).

Almost surely, 2^89661606177 is an apocalyptic number.

It is an amenable number.

89661606177 is a deficient number, since it is larger than the sum of its proper divisors (50808628959).

89661606177 is a wasteful number, since it uses less digits than its factorization.

89661606177 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31701.

The product of its (nonzero) digits is 4572288, while the sum is 57.

The spelling of 89661606177 in words is "eighty-nine billion, six hundred sixty-one million, six hundred six thousand, one hundred seventy-seven".