68156010 has 72 divisors (see below), whose sum is σ = 191928204. Its totient is φ = 16773120.

The previous prime is 68155991. The next prime is 68156041. The reversal of 68156010 is 1065186.

It can be written as a sum of positive squares in 6 ways, for example, as 14265729 + 53890281 = 3777^2 + 7341^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 12970 + ... + 17450.

Almost surely, 2^68156010 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 68156010, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (95964102).

68156010 is an abundant number, since it is smaller than the sum of its proper divisors (123772194).

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

68156010 is a wasteful number, since it uses less digits than its factorization.

68156010 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4520 (or 4504 counting only the distinct ones).

The product of its (nonzero) digits is 1440, while the sum is 27.

The square root of 68156010 is about 8255.6653275190. The cubic root of 68156010 is about 408.4774183546.

The spelling of 68156010 in words is "sixty-eight million, one hundred fifty-six thousand, ten".