68216069552 has 20 divisors (see below), whose sum is σ = 134030167056. Its totient is φ = 33627639360.

The previous prime is 68216069539. The next prime is 68216069561. The reversal of 68216069552 is 25596061286.

It is a Smith number, since the sum of its digits (50) coincides with the sum of the digits of its prime factors.

It is a self number, because there is not a number n which added to its sum of digits gives 68216069552.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 30023543 + ... + 30025814.

Almost surely, 2^68216069552 is an apocalyptic number.

It is an amenable number.

68216069552 is a deficient number, since it is larger than the sum of its proper divisors (65814097504).

68216069552 is a wasteful number, since it uses less digits than its factorization.

68216069552 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 60049436 (or 60049430 counting only the distinct ones).

The product of its (nonzero) digits is 1555200, while the sum is 50.

The spelling of 68216069552 in words is "sixty-eight billion, two hundred sixteen million, sixty-nine thousand, five hundred fifty-two".