204240097667 has 2 divisors, whose sum is σ = 204240097668. Its totient is φ = 204240097666.

The previous prime is 204240097631. The next prime is 204240097669. The reversal of 204240097667 is 766790042402.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 204240097667 - 2²² = 204235903363 is a prime.

Together with 204240097669, 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 (204240097669) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 102120048833 + 102120048834.

It is an arithmetic number, because the mean of its divisors is an integer number (102120048834).

Almost surely, 2^204240097667 is an apocalyptic number.

204240097667 is a deficient number, since it is larger than the sum of its proper divisors (1).

204240097667 is an equidigital number, since it uses as much as digits as its factorization.

204240097667 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1016064, while the sum is 47.

The spelling of 204240097667 in words is "two hundred four billion, two hundred forty million, ninety-seven thousand, six hundred sixty-seven".