68544792815616 has 192 divisors, whose sum is σ = 218665031457600. Its totient is φ = 21090705260544.

The previous prime is 68544792815599. The next prime is 68544792815617. The reversal of 68544792815616 is 61651829744586.

68544792815616 is a `hidden beast` number, since 6 + 8 + 5 + 447 + 9 + 28 + 156 + 1 + 6 = 666.

It is a tau number, because it is divible by the number of its divisors (192).

It is a Harshad number since it is a multiple of its sum of digits (72).

It is not an unprimeable number, because it can be changed into a prime (68544792815617) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 46957986 + ... + 48395681.

It is an arithmetic number, because the mean of its divisors is an integer number (1138880372175).

Almost surely, 2^{68544792815616} is an apocalyptic number.

It is an amenable number.

68544792815616 is an abundant number, since it is smaller than the sum of its proper divisors (150120238641984).

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

68544792815616 is a wasteful number, since it uses less digits than its factorization.

68544792815616 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 95353711 (or 95353685 counting only the distinct ones).

The product of its digits is 696729600, while the sum is 72.

The spelling of 68544792815616 in words is "sixty-eight trillion, five hundred forty-four billion, seven hundred ninety-two million, eight hundred fifteen thousand, six hundred sixteen".