68633661696 has 144 divisors (see below), whose sum is σ = 192566384640. Its totient is φ = 21641472000.

The previous prime is 68633661683. The next prime is 68633661703. The reversal of 68633661696 is 69616633686.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 10955461 + ... + 10961723.

It is an arithmetic number, because the mean of its divisors is an integer number (1337266560).

Almost surely, 2^68633661696 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 68633661696, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (96283192320).

68633661696 is an abundant number, since it is smaller than the sum of its proper divisors (123932722944).

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

68633661696 is a wasteful number, since it uses less digits than its factorization.

68633661696 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7052 (or 7038 counting only the distinct ones).

The product of its digits is 30233088, while the sum is 60.

The spelling of 68633661696 in words is "sixty-eight billion, six hundred thirty-three million, six hundred sixty-one thousand, six hundred ninety-six".