66703701100068 has 18 divisors (see below), whose sum is σ = 168612133336374. Its totient is φ = 22234567033344.

The previous prime is 66703701100067. The next prime is 66703701100087. The reversal of 66703701100068 is 86000110730766.

It can be written as a sum of positive squares in only one way, i.e., 49718406072384 + 16985295027684 = 7051128^2 + 4121322^2 .

It is a tau number, because it is divible by the number of its divisors (18).

It is a junction number, because it is equal to n+sod(n) for n = 66703701099996 and 66703701100032.

It is not an unprimeable number, because it can be changed into a prime (66703701100067) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 926440293021 + ... + 926440293092.

Almost surely, 2^{66703701100068} is an apocalyptic number.

It is an amenable number.

66703701100068 is an abundant number, since it is smaller than the sum of its proper divisors (101908432236306).

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

66703701100068 is a wasteful number, since it uses less digits than its factorization.

66703701100068 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1852880586123 (or 1852880586118 counting only the distinct ones).

The product of its (nonzero) digits is 254016, while the sum is 45.

The spelling of 66703701100068 in words is "sixty-six trillion, seven hundred three billion, seven hundred one million, one hundred thousand, sixty-eight".