68016768 has 32 divisors (see below), whose sum is σ = 180670560. Its totient is φ = 22672128.

The previous prime is 68016749. The next prime is 68016787. The reversal of 68016768 is 86761086.

It is an interprime number because it is at equal distance from previous prime (68016749) and next prime (68016787).

It is a tau number, because it is divible by the number of its divisors (32).

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

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 88180 + ... + 88947.

It is an arithmetic number, because the mean of its divisors is an integer number (5645955).

Almost surely, 2^68016768 is an apocalyptic number.

It is an amenable number.

68016768 is an abundant number, since it is smaller than the sum of its proper divisors (112653792).

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

68016768 is a wasteful number, since it uses less digits than its factorization.

68016768 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 177144 (or 177132 counting only the distinct ones).

The product of its (nonzero) digits is 96768, while the sum is 42.

The square root of 68016768 is about 8247.2278979061. The cubic root of 68016768 is about 408.1990570388.

The spelling of 68016768 in words is "sixty-eight million, sixteen thousand, seven hundred sixty-eight".