89690065920 has 1056 divisors, whose sum is σ = 389053671552. Its totient is φ = 18600689664.

The previous prime is 89690065901. The next prime is 89690065981. The reversal of 89690065920 is 2956009698.

It is an unprimeable number.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 306109294 + ... + 306109586.

Almost surely, 2^89690065920 is an apocalyptic number.

89690065920 is a gapful number since it is divisible by the number (80) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 89690065920, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (194526835776).

89690065920 is an abundant number, since it is smaller than the sum of its proper divisors (299363605632).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

89690065920 is a wasteful number, since it uses less digits than its factorization.

89690065920 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 417 (or 396 counting only the distinct ones).

The product of its (nonzero) digits is 2099520, while the sum is 54.

The spelling of 89690065920 in words is "eighty-nine billion, six hundred ninety million, sixty-five thousand, nine hundred twenty".