40166025312667 has 2 divisors, whose sum is σ = 40166025312668. Its totient is φ = 40166025312666.

The previous prime is 40166025312563. The next prime is 40166025312671. The reversal of 40166025312667 is 76621352066104.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 40166025312667 - 2²⁷ = 40165891094939 is a prime.

It is a super-2 number, since 2×40166025312667² (a number of 28 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 40166025312667.

It is not a weakly prime, because it can be changed into another prime (40166025372667) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20083012656333 + 20083012656334.

It is an arithmetic number, because the mean of its divisors is an integer number (20083012656334).

Almost surely, 2^{40166025312667} is an apocalyptic number.

40166025312667 is a deficient number, since it is larger than the sum of its proper divisors (1).

40166025312667 is an equidigital number, since it uses as much as digits as its factorization.

40166025312667 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2177280, while the sum is 49.

The spelling of 40166025312667 in words is "forty trillion, one hundred sixty-six billion, twenty-five million, three hundred twelve thousand, six hundred sixty-seven".