89163662818 has 4 divisors (see below), whose sum is σ = 133745494230. Its totient is φ = 44581831408.

The previous prime is 89163662801. The next prime is 89163662849. The reversal of 89163662818 is 81826636198.

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

It can be written as a sum of positive squares in only one way, i.e., 79148256889 + 10015405929 = 281333^2 + 100077^2 .

It is a super-2 number, since 2×89163662818² (a number of 23 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 22290915703 + ... + 22290915706.

Almost surely, 2^89163662818 is an apocalyptic number.

89163662818 is a deficient number, since it is larger than the sum of its proper divisors (44581831412).

89163662818 is a wasteful number, since it uses less digits than its factorization.

89163662818 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 44581831411.

The product of its digits is 5971968, while the sum is 58.

The spelling of 89163662818 in words is "eighty-nine billion, one hundred sixty-three million, six hundred sixty-two thousand, eight hundred eighteen".