38403665160689 has 2 divisors, whose sum is σ = 38403665160690. Its totient is φ = 38403665160688.

The previous prime is 38403665160667. The next prime is 38403665160919. The reversal of 38403665160689 is 98606156630483.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 26259137150689 + 12144528010000 = 5124367^2 + 3484900^2 .

It is a cyclic number.

It is not a de Polignac number, because 38403665160689 - 2⁴⁴ = 20811479116273 is a prime.

It is not a weakly prime, because it can be changed into another prime (38403665160389) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 19201832580344 + 19201832580345.

It is an arithmetic number, because the mean of its divisors is an integer number (19201832580345).

Almost surely, 2^{38403665160689} is an apocalyptic number.

It is an amenable number.

38403665160689 is a deficient number, since it is larger than the sum of its proper divisors (1).

38403665160689 is an equidigital number, since it uses as much as digits as its factorization.

38403665160689 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 134369280, while the sum is 65.

The spelling of 38403665160689 in words is "thirty-eight trillion, four hundred three billion, six hundred sixty-five million, one hundred sixty thousand, six hundred eighty-nine".