265535940650203 has 2 divisors, whose sum is σ = 265535940650204. Its totient is φ = 265535940650202.

The previous prime is 265535940650177. The next prime is 265535940650333. The reversal of 265535940650203 is 302056049535562.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 265535940650203 - 2⁹ = 265535940649691 is a prime.

It is not a weakly prime, because it can be changed into another prime (265535940657203) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 132767970325101 + 132767970325102.

It is an arithmetic number, because the mean of its divisors is an integer number (132767970325102).

Almost surely, 2^{265535940650203} is an apocalyptic number.

265535940650203 is a deficient number, since it is larger than the sum of its proper divisors (1).

265535940650203 is an equidigital number, since it uses as much as digits as its factorization.

265535940650203 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 29160000, while the sum is 55.

The spelling of 265535940650203 in words is "two hundred sixty-five trillion, five hundred thirty-five billion, nine hundred forty million, six hundred fifty thousand, two hundred three".