40566443279 has 2 divisors, whose sum is σ = 40566443280. Its totient is φ = 40566443278.

The previous prime is 40566443263. The next prime is 40566443293. The reversal of 40566443279 is 97234466504.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 40566443279 - 2⁴ = 40566443263 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (40566443219) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20283221639 + 20283221640.

It is an arithmetic number, because the mean of its divisors is an integer number (20283221640).

Almost surely, 2^40566443279 is an apocalyptic number.

40566443279 is a deficient number, since it is larger than the sum of its proper divisors (1).

40566443279 is an equidigital number, since it uses as much as digits as its factorization.

40566443279 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 4354560, while the sum is 50.

The spelling of 40566443279 in words is "forty billion, five hundred sixty-six million, four hundred forty-three thousand, two hundred seventy-nine".