38166820543 has 2 divisors, whose sum is σ = 38166820544. Its totient is φ = 38166820542.

The previous prime is 38166820507. The next prime is 38166820561. The reversal of 38166820543 is 34502866183.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 38166820543 - 2¹³ = 38166812351 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 38166820493 and 38166820502.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (38166820243) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 19083410271 + 19083410272.

It is an arithmetic number, because the mean of its divisors is an integer number (19083410272).

Almost surely, 2^38166820543 is an apocalyptic number.

38166820543 is a deficient number, since it is larger than the sum of its proper divisors (1).

38166820543 is an equidigital number, since it uses as much as digits as its factorization.

38166820543 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 829440, while the sum is 46.

The spelling of 38166820543 in words is "thirty-eight billion, one hundred sixty-six million, eight hundred twenty thousand, five hundred forty-three".