68573115566 has 8 divisors (see below), whose sum is σ = 106177727424. Its totient is φ = 33180539760.

The previous prime is 68573115551. The next prime is 68573115599. The reversal of 68573115566 is 66551137586.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

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, 553008935 + ... + 553009058.

It is an arithmetic number, because the mean of its divisors is an integer number (13272215928).

Almost surely, 2^68573115566 is an apocalyptic number.

68573115566 is a deficient number, since it is larger than the sum of its proper divisors (37604611858).

68573115566 is a wasteful number, since it uses less digits than its factorization.

68573115566 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1106018026.

The product of its digits is 4536000, while the sum is 53.

The spelling of 68573115566 in words is "sixty-eight billion, five hundred seventy-three million, one hundred fifteen thousand, five hundred sixty-six".