66700014811 has 48 divisors (see below), whose sum is σ = 75474726912. Its totient is φ = 58828377600.

The previous prime is 66700014793. The next prime is 66700014833. The reversal of 66700014811 is 11841000766.

It is not a de Polignac number, because 66700014811 - 2²¹ = 66697917659 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (66700014211) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 103090890 + ... + 103091536.

It is an arithmetic number, because the mean of its divisors is an integer number (1572390144).

Almost surely, 2^66700014811 is an apocalyptic number.

66700014811 is a deficient number, since it is larger than the sum of its proper divisors (8774712101).

66700014811 is a wasteful number, since it uses less digits than its factorization.

66700014811 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1060 (or 1043 counting only the distinct ones).

The product of its (nonzero) digits is 8064, while the sum is 34.

The spelling of 66700014811 in words is "sixty-six billion, seven hundred million, fourteen thousand, eight hundred eleven".