667216263011 has 4 divisors (see below), whose sum is σ = 667218003000. Its totient is φ = 667214523024.

The previous prime is 667216262983. The next prime is 667216263013. The reversal of 667216263011 is 110362612766.

667216263011 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 667216263011 - 2²² = 667212068707 is a prime.

It is a super-2 number, since 2×667216263011² (a number of 24 digits) contains 22 as substring.

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 667216263011.

It is not an unprimeable number, because it can be changed into a prime (667216263013) 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, 14186 + ... + 1155263.

It is an arithmetic number, because the mean of its divisors is an integer number (166804500750).

Almost surely, 2^667216263011 is an apocalyptic number.

667216263011 is a deficient number, since it is larger than the sum of its proper divisors (1739989).

667216263011 is a wasteful number, since it uses less digits than its factorization.

667216263011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1739988.

The product of its (nonzero) digits is 108864, while the sum is 41.

Adding to 667216263011 its reverse (110362612766), we get a palindrome (777578875777).

The spelling of 667216263011 in words is "six hundred sixty-seven billion, two hundred sixteen million, two hundred sixty-three thousand, eleven".