68816147616 has 48 divisors (see below), whose sum is σ = 200713766400. Its totient is φ = 22938715584.

The previous prime is 68816147593. The next prime is 68816147623. The reversal of 68816147616 is 61674161886.

68816147616 is a `hidden beast` number, since 6 + 8 + 8 + 1 + 6 + 14 + 7 + 616 = 666.

It is a tau number, because it is divible by the number of its divisors (48).

It is a Harshad number since it is a multiple of its sum of digits (54).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 39823296 + ... + 39825023.

It is an arithmetic number, because the mean of its divisors is an integer number (4181536800).

Almost surely, 2^68816147616 is an apocalyptic number.

It is an amenable number.

68816147616 is an abundant number, since it is smaller than the sum of its proper divisors (131897618784).

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

68816147616 is a wasteful number, since it uses less digits than its factorization.

68816147616 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 79648338 (or 79648324 counting only the distinct ones).

The product of its digits is 2322432, while the sum is 54.

The spelling of 68816147616 in words is "sixty-eight billion, eight hundred sixteen million, one hundred forty-seven thousand, six hundred sixteen".