689165437065000 has 640 divisors, whose sum is σ = 2567812884848640. Its totient is φ = 150656115456000.

The previous prime is 689165437064987. The next prime is 689165437065043. The reversal of 689165437065000 is 560734561986.

It is a Harshad number since it is a multiple of its sum of digits (60).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 159 ways as a sum of consecutive naturals, for example, 30701883777 + ... + 30701906223.

It is an arithmetic number, because the mean of its divisors is an integer number (4012207632576).

Almost surely, 2^{689165437065000} is an apocalyptic number.

689165437065000 is a gapful number since it is divisible by the number (60) 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 689165437065000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1283906442424320).

689165437065000 is an abundant number, since it is smaller than the sum of its proper divisors (1878647447783640).

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

689165437065000 is a wasteful number, since it uses less digits than its factorization.

689165437065000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 35219 (or 35200 counting only the distinct ones).

The product of its (nonzero) digits is 32659200, while the sum is 60.

The spelling of 689165437065000 in words is "six hundred eighty-nine trillion, one hundred sixty-five billion, four hundred thirty-seven million, sixty-five thousand".