66700070734011 has 64 divisors (see below), whose sum is σ = 105278970101760. Its totient is φ = 37030750416000.

The previous prime is 66700070734009. The next prime is 66700070734019. The reversal of 66700070734011 is 11043707000766.

66700070734011 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 66700070734011 - 2¹ = 66700070734009 is a prime.

It is not an unprimeable number, because it can be changed into a prime (66700070734019) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 33361056 + ... + 35303826.

It is an arithmetic number, because the mean of its divisors is an integer number (1644983907840).

Almost surely, 2^{66700070734011} is an apocalyptic number.

66700070734011 is a deficient number, since it is larger than the sum of its proper divisors (38578899367749).

66700070734011 is a wasteful number, since it uses less digits than its factorization.

66700070734011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1943408.

The product of its (nonzero) digits is 148176, while the sum is 42.

Adding to 66700070734011 its reverse (11043707000766), we get a palindrome (77743777734777).

The spelling of 66700070734011 in words is "sixty-six trillion, seven hundred billion, seventy million, seven hundred thirty-four thousand, eleven".