3640558344167 has 2 divisors, whose sum is σ = 3640558344168. Its totient is φ = 3640558344166.

The previous prime is 3640558344133. The next prime is 3640558344211. The reversal of 3640558344167 is 7614438550463.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 3640558344167 - 2⁸ = 3640558343911 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (3640558344107) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1820279172083 + 1820279172084.

It is an arithmetic number, because the mean of its divisors is an integer number (1820279172084).

Almost surely, 2^{3640558344167} is an apocalyptic number.

3640558344167 is a deficient number, since it is larger than the sum of its proper divisors (1).

3640558344167 is an equidigital number, since it uses as much as digits as its factorization.

3640558344167 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 29030400, while the sum is 56.

The spelling of 3640558344167 in words is "three trillion, six hundred forty billion, five hundred fifty-eight million, three hundred forty-four thousand, one hundred sixty-seven".