68123016 has 96 divisors (see below), whose sum is σ = 201615960. Its totient is φ = 20653056.

The previous prime is 68122991. The next prime is 68123023. The reversal of 68123016 is 61032186.

It can be written as a sum of positive squares in 4 ways, for example, as 60000516 + 8122500 = 7746^2 + 2850^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 67830 + ... + 68826.

Almost surely, 2^68123016 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 68123016, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (100807980).

68123016 is an abundant number, since it is smaller than the sum of its proper divisors (133492944).

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

68123016 is a wasteful number, since it uses less digits than its factorization.

68123016 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1095 (or 1088 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 27.

The square root of 68123016 is about 8253.6668214800. Note that the first 3 decimals coincide. The cubic root of 68123016 is about 408.4114937243.

The spelling of 68123016 in words is "sixty-eight million, one hundred twenty-three thousand, sixteen".