40166254647179 has 2 divisors, whose sum is σ = 40166254647180. Its totient is φ = 40166254647178.

The previous prime is 40166254647143. The next prime is 40166254647193. The reversal of 40166254647179 is 97174645266104.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 40166254647179 - 2²⁸ = 40165986211723 is a prime.

It is a super-2 number, since 2×40166254647179² (a number of 28 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (40166254647979) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20083127323589 + 20083127323590.

It is an arithmetic number, because the mean of its divisors is an integer number (20083127323590).

Almost surely, 2^{40166254647179} is an apocalyptic number.

40166254647179 is a deficient number, since it is larger than the sum of its proper divisors (1).

40166254647179 is an equidigital number, since it uses as much as digits as its factorization.

40166254647179 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 60963840, while the sum is 62.

The spelling of 40166254647179 in words is "forty trillion, one hundred sixty-six billion, two hundred fifty-four million, six hundred forty-seven thousand, one hundred seventy-nine".