66736707074068 has 12 divisors (see below), whose sum is σ = 117860698273780. Its totient is φ = 33062221852992.

The previous prime is 66736707074047. The next prime is 66736707074117. The reversal of 66736707074068 is 86047070763766.

It can be written as a sum of positive squares in 2 ways, for example, as 45864345271684 + 20872361802384 = 6772322^2 + 4568628^2 .

It is a junction number, because it is equal to n+sod(n) for n = 66736707073994 and 66736707074012.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 76532920521 + ... + 76532921392.

Almost surely, 2^{66736707074068} is an apocalyptic number.

It is an amenable number.

66736707074068 is a deficient number, since it is larger than the sum of its proper divisors (51123991199712).

66736707074068 is a wasteful number, since it uses less digits than its factorization.

66736707074068 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 153065842026 (or 153065842024 counting only the distinct ones).

The product of its (nonzero) digits is 298722816, while the sum is 67.

The spelling of 66736707074068 in words is "sixty-six trillion, seven hundred thirty-six billion, seven hundred seven million, seventy-four thousand, sixty-eight".