68775216338556 has 108 divisors (see below), whose sum is σ = 217788185144712. Its totient is φ = 18138518588736.

The previous prime is 68775216338531. The next prime is 68775216338557. The reversal of 68775216338556 is 65583361257786.

68775216338556 is a `hidden beast` number, since 6 + 8 + 7 + 7 + 5 + 2 + 1 + 63 + 3 + 8 + 556 = 666.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (68775216338557) by changing a digit.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 1499523910 + ... + 1499569773.

Almost surely, 2^{68775216338556} is an apocalyptic number.

It is an amenable number.

68775216338556 is an abundant number, since it is smaller than the sum of its proper divisors (149012968806156).

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

68775216338556 is a wasteful number, since it uses less digits than its factorization.

68775216338556 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2999093720 (or 2999093708 counting only the distinct ones).

The product of its digits is 1524096000, while the sum is 72.

The spelling of 68775216338556 in words is "sixty-eight trillion, seven hundred seventy-five billion, two hundred sixteen million, three hundred thirty-eight thousand, five hundred fifty-six".