40166271847529 has 2 divisors, whose sum is σ = 40166271847530. Its totient is φ = 40166271847528.

The previous prime is 40166271847501. The next prime is 40166271847531. The reversal of 40166271847529 is 92574817266104.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 34398459600400 + 5767812247129 = 5865020^2 + 2401627^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-40166271847529 is a prime.

It is a super-2 number, since 2×40166271847529² (a number of 28 digits) contains 22 as substring.

Together with 40166271847531, 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 (40166271847549) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20083135923764 + 20083135923765.

It is an arithmetic number, because the mean of its divisors is an integer number (20083135923765).

Almost surely, 2^{40166271847529} is an apocalyptic number.

It is an amenable number.

40166271847529 is a deficient number, since it is larger than the sum of its proper divisors (1).

40166271847529 is an equidigital number, since it uses as much as digits as its factorization.

40166271847529 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 40642560, while the sum is 62.

The spelling of 40166271847529 in words is "forty trillion, one hundred sixty-six billion, two hundred seventy-one million, eight hundred forty-seven thousand, five hundred twenty-nine".