1600172873161 has 2 divisors, whose sum is σ = 1600172873162. Its totient is φ = 1600172873160.

The previous prime is 1600172873113. The next prime is 1600172873177. The reversal of 1600172873161 is 1613782710061.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1572405649936 + 27767223225 = 1253956^2 + 166635^2 .

It is a cyclic number.

It is not a de Polignac number, because 1600172873161 - 2¹⁷ = 1600172742089 is a prime.

It is not a weakly prime, because it can be changed into another prime (1600172873111) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 800086436580 + 800086436581.

It is an arithmetic number, because the mean of its divisors is an integer number (800086436581).

Almost surely, 2^{1600172873161} is an apocalyptic number.

It is an amenable number.

1600172873161 is a deficient number, since it is larger than the sum of its proper divisors (1).

1600172873161 is an equidigital number, since it uses as much as digits as its factorization.

1600172873161 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 84672, while the sum is 43.

The spelling of 1600172873161 in words is "one trillion, six hundred billion, one hundred seventy-two million, eight hundred seventy-three thousand, one hundred sixty-one".