199263264401 has 2 divisors, whose sum is σ = 199263264402. Its totient is φ = 199263264400.

The previous prime is 199263264377. The next prime is 199263264457. The reversal of 199263264401 is 104462362991.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 158881960000 + 40381304401 = 398600^2 + 200951^2 .

It is a cyclic number.

It is not a de Polignac number, because 199263264401 - 2³⁴ = 182083395217 is a prime.

It is not a weakly prime, because it can be changed into another prime (199263264481) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 99631632200 + 99631632201.

It is an arithmetic number, because the mean of its divisors is an integer number (99631632201).

Almost surely, 2^199263264401 is an apocalyptic number.

It is an amenable number.

199263264401 is a deficient number, since it is larger than the sum of its proper divisors (1).

199263264401 is an equidigital number, since it uses as much as digits as its factorization.

199263264401 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 559872, while the sum is 47.

The spelling of 199263264401 in words is "one hundred ninety-nine billion, two hundred sixty-three million, two hundred sixty-four thousand, four hundred one".