72916666666696 has 8 divisors (see below), whose sum is σ = 136718750000070. Its totient is φ = 36458333333344.

The previous prime is 72916666666691. The next prime is 72916666666703. The reversal of 72916666666696 is 69666666661927.

It can be written as a sum of positive squares in only one way, i.e., 49372685964900 + 23543980701796 = 7026570^2 + 4852214^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is not an unprimeable number, because it can be changed into a prime (72916666666691) 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 as a sum of consecutive naturals, namely, 4557291666661 + ... + 4557291666676.

Almost surely, 2^{72916666666696} is an apocalyptic number.

It is an amenable number.

72916666666696 is a deficient number, since it is larger than the sum of its proper divisors (63802083333374).

72916666666696 is a wasteful number, since it uses less digits than its factorization.

72916666666696 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9114583333343 (or 9114583333339 counting only the distinct ones).

The product of its digits is 11428107264, while the sum is 82.

The spelling of 72916666666696 in words is "seventy-two trillion, nine hundred sixteen billion, six hundred sixty-six million, six hundred sixty-six thousand, six hundred ninety-six".