667406670011 has 16 divisors (see below), whose sum is σ = 726904287648. Its totient is φ = 610405900800.

The previous prime is 667406669981. The next prime is 667406670023. The reversal of 667406670011 is 110076604766.

667406670011 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-667406670011 is a prime.

It is not an unprimeable number, because it can be changed into a prime (667406670031) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3791000 + ... + 3963141.

It is an arithmetic number, because the mean of its divisors is an integer number (45431517978).

Almost surely, 2^667406670011 is an apocalyptic number.

667406670011 is a gapful number since it is divisible by the number (61) formed by its first and last digit.

667406670011 is a deficient number, since it is larger than the sum of its proper divisors (59497617637).

667406670011 is a wasteful number, since it uses less digits than its factorization.

667406670011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7754302.

The product of its (nonzero) digits is 254016, while the sum is 44.

The spelling of 667406670011 in words is "six hundred sixty-seven billion, four hundred six million, six hundred seventy thousand, eleven".