40664422067 has 2 divisors, whose sum is σ = 40664422068. Its totient is φ = 40664422066.

The previous prime is 40664422037. The next prime is 40664422121. The reversal of 40664422067 is 76022446604.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 40664422067 - 2¹⁸ = 40664159923 is a prime.

It is not a weakly prime, because it can be changed into another prime (40664422037) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20332211033 + 20332211034.

It is an arithmetic number, because the mean of its divisors is an integer number (20332211034).

Almost surely, 2^40664422067 is an apocalyptic number.

40664422067 is a deficient number, since it is larger than the sum of its proper divisors (1).

40664422067 is an equidigital number, since it uses as much as digits as its factorization.

40664422067 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 387072, while the sum is 41.

The spelling of 40664422067 in words is "forty billion, six hundred sixty-four million, four hundred twenty-two thousand, sixty-seven".