68941656 has 96 divisors (see below), whose sum is σ = 219217440. Its totient is φ = 19160064.

The previous prime is 68941643. The next prime is 68941657. The reversal of 68941656 is 65614986.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (68941657) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 16800 + ... + 20496.

It is an arithmetic number, because the mean of its divisors is an integer number (2283515).

Almost surely, 2^68941656 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 68941656, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (109608720).

68941656 is an abundant number, since it is smaller than the sum of its proper divisors (150275784).

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

68941656 is a wasteful number, since it uses less digits than its factorization.

68941656 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3753 (or 3746 counting only the distinct ones).

The product of its digits is 311040, while the sum is 45.

The square root of 68941656 is about 8303.1112241135. Note that the first 3 decimals coincide. The cubic root of 68941656 is about 410.0409556549.

The spelling of 68941656 in words is "sixty-eight million, nine hundred forty-one thousand, six hundred fifty-six".