68156592 has 80 divisors (see below), whose sum is σ = 204129792. Its totient is φ = 19192320.

The previous prime is 68156579. The next prime is 68156593. The reversal of 68156592 is 29565186.

It is a hoax number, since the sum of its digits (42) coincides with the sum of the digits of its distinct prime factors.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is not an unprimeable number, because it can be changed into a prime (68156593) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 22428 + ... + 25284.

Almost surely, 2^68156592 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 68156592, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (102064896).

68156592 is an abundant number, since it is smaller than the sum of its proper divisors (135973200).

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

68156592 is a wasteful number, since it uses less digits than its factorization.

68156592 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2946 (or 2940 counting only the distinct ones).

The product of its digits is 129600, while the sum is 42.

The square root of 68156592 is about 8255.7005759657. The cubic root of 68156592 is about 408.4785810459.

The spelling of 68156592 in words is "sixty-eight million, one hundred fifty-six thousand, five hundred ninety-two".