667367040619 has 2 divisors, whose sum is σ = 667367040620. Its totient is φ = 667367040618.

The previous prime is 667367040589. The next prime is 667367040727. The reversal of 667367040619 is 916040763766.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 667367040619 - 2¹⁵ = 667367007851 is a prime.

It is a super-2 number, since 2×667367040619² (a number of 24 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 667367040619.

It is not a weakly prime, because it can be changed into another prime (667367040419) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 333683520309 + 333683520310.

It is an arithmetic number, because the mean of its divisors is an integer number (333683520310).

Almost surely, 2^667367040619 is an apocalyptic number.

667367040619 is a deficient number, since it is larger than the sum of its proper divisors (1).

667367040619 is an equidigital number, since it uses as much as digits as its factorization.

667367040619 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 6858432, while the sum is 55.

The spelling of 667367040619 in words is "six hundred sixty-seven billion, three hundred sixty-seven million, forty thousand, six hundred nineteen".