68901996016 has 120 divisors (see below), whose sum is σ = 157737404160. Its totient is φ = 29068212096.

The previous prime is 68901995971. The next prime is 68901996041. The reversal of 68901996016 is 61069910986.

It is a super-3 number, since 3×68901996016³ (a number of 33 digits) contains 333 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 13671225 + ... + 13676263.

It is an arithmetic number, because the mean of its divisors is an integer number (1314478368).

Almost surely, 2^68901996016 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 68901996016, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (78868702080).

68901996016 is an abundant number, since it is smaller than the sum of its proper divisors (88835408144).

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

68901996016 is a wasteful number, since it uses less digits than its factorization.

68901996016 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5331 (or 5318 counting only the distinct ones).

The product of its (nonzero) digits is 1259712, while the sum is 55.

The spelling of 68901996016 in words is "sixty-eight billion, nine hundred one million, nine hundred ninety-six thousand, sixteen".