667290011 has 4 divisors (see below), whose sum is σ = 675736800. Its totient is φ = 658843224.

The previous prime is 667289999. The next prime is 667290017. The reversal of 667290011 is 110092766.

It is a happy number.

667290011 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 667290011 - 2¹⁴ = 667273627 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 667290011.

It is not an unprimeable number, because it can be changed into a prime (667290017) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4223276 + ... + 4223433.

It is an arithmetic number, because the mean of its divisors is an integer number (168934200).

Almost surely, 2^667290011 is an apocalyptic number.

667290011 is a deficient number, since it is larger than the sum of its proper divisors (8446789).

667290011 is an equidigital number, since it uses as much as digits as its factorization.

667290011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8446788.

The product of its (nonzero) digits is 4536, while the sum is 32.

The square root of 667290011 is about 25831.9571654956. The cubic root of 667290011 is about 873.8526506373.

The spelling of 667290011 in words is "six hundred sixty-seven million, two hundred ninety thousand, eleven".