68163066 has 64 divisors (see below), whose sum is σ = 156764160. Its totient is φ = 21942000.

The previous prime is 68163049. The next prime is 68163083. The reversal of 68163066 is 66036186.

It is an interprime number because it is at equal distance from previous prime (68163049) and next prime (68163083).

It is a self number, because there is not a number n which added to its sum of digits gives 68163066.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 271441 + ... + 271691.

It is an arithmetic number, because the mean of its divisors is an integer number (2449440).

Almost surely, 2^68163066 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 68163066, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (78382080).

68163066 is an abundant number, since it is smaller than the sum of its proper divisors (88601094).

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

68163066 is a wasteful number, since it uses less digits than its factorization.

68163066 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 416 (or 410 counting only the distinct ones).

The product of its (nonzero) digits is 31104, while the sum is 36.

The square root of 68163066 is about 8256.0926593638. The cubic root of 68163066 is about 408.4915140409.

The spelling of 68163066 in words is "sixty-eight million, one hundred sixty-three thousand, sixty-six".