68163172 has 96 divisors (see below), whose sum is σ = 157409280. Its totient is φ = 25264800.

The previous prime is 68163163. The next prime is 68163181. The reversal of 68163172 is 27136186.

It is an interprime number because it is at equal distance from previous prime (68163163) and next prime (68163181).

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1155279 + ... + 1155337.

It is an arithmetic number, because the mean of its divisors is an integer number (1639680).

Almost surely, 2^68163172 is an apocalyptic number.

68163172 is a gapful number since it is divisible by the number (62) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 68163172, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (78704640).

68163172 is an abundant number, since it is smaller than the sum of its proper divisors (89246108).

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

68163172 is a wasteful number, since it uses less digits than its factorization.

68163172 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 134 (or 110 counting only the distinct ones).

The product of its digits is 12096, while the sum is 34.

The square root of 68163172 is about 8256.0990788628. The cubic root of 68163172 is about 408.4917257884.

The spelling of 68163172 in words is "sixty-eight million, one hundred sixty-three thousand, one hundred seventy-two".