200156451169 has 2 divisors, whose sum is σ = 200156451170. Its totient is φ = 200156451168.

The previous prime is 200156451161. The next prime is 200156451217. The reversal of 200156451169 is 961154651002.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 103177148944 + 96979302225 = 321212^2 + 311415^2 .

It is a cyclic number.

It is not a de Polignac number, because 200156451169 - 2³ = 200156451161 is a prime.

It is a super-2 number, since 2×200156451169² (a number of 23 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (200156451161) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 100078225584 + 100078225585.

It is an arithmetic number, because the mean of its divisors is an integer number (100078225585).

Almost surely, 2^200156451169 is an apocalyptic number.

It is an amenable number.

200156451169 is a deficient number, since it is larger than the sum of its proper divisors (1).

200156451169 is an equidigital number, since it uses as much as digits as its factorization.

200156451169 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 64800, while the sum is 40.

The spelling of 200156451169 in words is "two hundred billion, one hundred fifty-six million, four hundred fifty-one thousand, one hundred sixty-nine".