89561414165 has 4 divisors (see below), whose sum is σ = 107473697004. Its totient is φ = 71649131328.

The previous prime is 89561414149. The next prime is 89561414171. The reversal of 89561414165 is 56141416598.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 20130218161 + 69431196004 = 141881^2 + 263498^2 .

It is a cyclic number.

It is not a de Polignac number, because 89561414165 - 2⁴ = 89561414149 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8956141412 + ... + 8956141421.

It is an arithmetic number, because the mean of its divisors is an integer number (26868424251).

Almost surely, 2^89561414165 is an apocalyptic number.

It is an amenable number.

89561414165 is a deficient number, since it is larger than the sum of its proper divisors (17912282839).

89561414165 is a wasteful number, since it uses less digits than its factorization.

89561414165 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17912282838.

The product of its digits is 1036800, while the sum is 50.

The spelling of 89561414165 in words is "eighty-nine billion, five hundred sixty-one million, four hundred fourteen thousand, one hundred sixty-five".