69680665968 has 320 divisors, whose sum is σ = 204871887360. Its totient is φ = 20277264384.

The previous prime is 69680665963. The next prime is 69680665969. The reversal of 69680665968 is 86956608696.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (69680665963) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 222621780 + ... + 222622092.

It is an arithmetic number, because the mean of its divisors is an integer number (640224648).

Almost surely, 2^69680665968 is an apocalyptic number.

69680665968 is a gapful number since it is divisible by the number (68) 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 69680665968, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (102435943680).

69680665968 is an abundant number, since it is smaller than the sum of its proper divisors (135191221392).

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

69680665968 is a wasteful number, since it uses less digits than its factorization.

69680665968 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 616 (or 610 counting only the distinct ones).

The product of its (nonzero) digits is 201553920, while the sum is 69.

The spelling of 69680665968 in words is "sixty-nine billion, six hundred eighty million, six hundred sixty-five thousand, nine hundred sixty-eight".