199885855153 has 2 divisors, whose sum is σ = 199885855154. Its totient is φ = 199885855152.

The previous prime is 199885855139. The next prime is 199885855157. The reversal of 199885855153 is 351558588991.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 119665489329 + 80220365824 = 345927^2 + 283232^2 .

It is a cyclic number.

It is not a de Polignac number, because 199885855153 - 2²¹ = 199883758001 is a prime.

It is not a weakly prime, because it can be changed into another prime (199885855157) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 99942927576 + 99942927577.

It is an arithmetic number, because the mean of its divisors is an integer number (99942927577).

Almost surely, 2^199885855153 is an apocalyptic number.

It is an amenable number.

199885855153 is a deficient number, since it is larger than the sum of its proper divisors (1).

199885855153 is an equidigital number, since it uses as much as digits as its factorization.

199885855153 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 77760000, while the sum is 67.

The spelling of 199885855153 in words is "one hundred ninety-nine billion, eight hundred eighty-five million, eight hundred fifty-five thousand, one hundred fifty-three".