667215552299 has 2 divisors, whose sum is σ = 667215552300. Its totient is φ = 667215552298.

The previous prime is 667215552287. The next prime is 667215552301. The reversal of 667215552299 is 992255512766.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 667215552299 - 2²⁴ = 667198775083 is a prime.

Together with 667215552301, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (667215552259) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 333607776149 + 333607776150.

It is an arithmetic number, because the mean of its divisors is an integer number (333607776150).

Almost surely, 2^667215552299 is an apocalyptic number.

667215552299 is a deficient number, since it is larger than the sum of its proper divisors (1).

667215552299 is an equidigital number, since it uses as much as digits as its factorization.

667215552299 is an evil number, because the sum of its binary digits is even.

The product of its digits is 20412000, while the sum is 59.

The spelling of 667215552299 in words is "six hundred sixty-seven billion, two hundred fifteen million, five hundred fifty-two thousand, two hundred ninety-nine".