667840062243 has 4 divisors (see below), whose sum is σ = 890453416328. Its totient is φ = 445226708160.

The previous prime is 667840062229. The next prime is 667840062271. The reversal of 667840062243 is 342260048766.

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

It is not a de Polignac number, because 667840062243 - 2²⁴ = 667823285027 is a prime.

It is a super-2 number, since 2×667840062243² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 667840062192 and 667840062201.

It is not an unprimeable number, because it can be changed into a prime (667840022243) 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 3 ways as a sum of consecutive naturals, for example, 111306677038 + ... + 111306677043.

It is an arithmetic number, because the mean of its divisors is an integer number (222613354082).

Almost surely, 2^667840062243 is an apocalyptic number.

667840062243 is a deficient number, since it is larger than the sum of its proper divisors (222613354085).

667840062243 is a wasteful number, since it uses less digits than its factorization.

667840062243 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 222613354084.

The product of its (nonzero) digits is 2322432, while the sum is 48.

The spelling of 667840062243 in words is "six hundred sixty-seven billion, eight hundred forty million, sixty-two thousand, two hundred forty-three".