3850165504121 has 2 divisors, whose sum is σ = 3850165504122. Its totient is φ = 3850165504120.

The previous prime is 3850165504067. The next prime is 3850165504169. The reversal of 3850165504121 is 1214055610583.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 2860411125625 + 989754378496 = 1691275^2 + 994864^2 .

It is an emirp because it is prime and its reverse (1214055610583) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 3850165504121 - 2¹⁸ = 3850165241977 is a prime.

It is not a weakly prime, because it can be changed into another prime (3850165504421) 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, 1925082752060 + 1925082752061.

It is an arithmetic number, because the mean of its divisors is an integer number (1925082752061).

Almost surely, 2^{3850165504121} is an apocalyptic number.

It is an amenable number.

3850165504121 is a deficient number, since it is larger than the sum of its proper divisors (1).

3850165504121 is an equidigital number, since it uses as much as digits as its factorization.

3850165504121 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 144000, while the sum is 41.

The spelling of 3850165504121 in words is "three trillion, eight hundred fifty billion, one hundred sixty-five million, five hundred four thousand, one hundred twenty-one".