68046896164 has 81 divisors (see below), whose sum is σ = 131636196657. Its totient is φ = 30764549088.

The previous prime is 68046896129. The next prime is 68046896167. The reversal of 68046896164 is 46169864086.

It is a happy number.

The square root of 68046896164 is 260858.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in only one way, i.e., 10066108900 + 57980787264 = 100330^2 + 240792^2 .

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 68046896099 and 68046896108.

It is not an unprimeable number, because it can be changed into a prime (68046896167) by changing a digit.

It is a polite number, since it can be written in 26 ways as a sum of consecutive naturals, for example, 535802269 + ... + 535802395.

Almost surely, 2^68046896164 is an apocalyptic number.

68046896164 is the 260858-th square number.

It is an amenable number.

68046896164 is a deficient number, since it is larger than the sum of its proper divisors (63589300493).

68046896164 is a wasteful number, since it uses less digits than its factorization.

68046896164 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 442 (or 221 counting only the distinct ones).

The product of its (nonzero) digits is 11943936, while the sum is 58.

The spelling of 68046896164 in words is "sixty-eight billion, forty-six million, eight hundred ninety-six thousand, one hundred sixty-four".