68799191616 has 105 divisors (see below), whose sum is σ = 203998354131. Its totient is φ = 22926768768.

The previous prime is 68799191603. The next prime is 68799191663. The reversal of 68799191616 is 61619199786.

The square root of 68799191616 is 262296.

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

68799191616 is a `hidden beast` number, since 6 + 8 + 7 + 9 + 9 + 1 + 9 + 1 + 616 = 666.

It is an unprimeable number.

It is a polite number, since it can be written in 14 ways as a sum of consecutive naturals, for example, 18883491 + ... + 18887133.

Almost surely, 2^68799191616 is an apocalyptic number.

68799191616 is the 262296-th square number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 68799191616

68799191616 is an abundant number, since it is smaller than the sum of its proper divisors (135199162515).

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

68799191616 is an frugal number, since it uses more digits than its factorization.

68799191616 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7310 (or 3648 counting only the distinct ones).

The product of its digits is 8817984, while the sum is 63.

The spelling of 68799191616 in words is "sixty-eight billion, seven hundred ninety-nine million, one hundred ninety-one thousand, six hundred sixteen".