66740068014 has 16 divisors (see below), whose sum is σ = 137087707728. Its totient is φ = 21645427392.

The previous prime is 66740068013. The next prime is 66740068019. The reversal of 66740068014 is 41086004766.

66740068014 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (66740068013) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 150315247 + ... + 150315690.

It is an arithmetic number, because the mean of its divisors is an integer number (8567981733).

Almost surely, 2^66740068014 is an apocalyptic number.

66740068014 is an abundant number, since it is smaller than the sum of its proper divisors (70347639714).

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

66740068014 is a wasteful number, since it uses less digits than its factorization.

66740068014 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 300630979.

The product of its (nonzero) digits is 193536, while the sum is 42.

The spelling of 66740068014 in words is "sixty-six billion, seven hundred forty million, sixty-eight thousand, fourteen".