265142621450611 has 2 divisors, whose sum is σ = 265142621450612. Its totient is φ = 265142621450610.

The previous prime is 265142621450579. The next prime is 265142621450647. The reversal of 265142621450611 is 116054126241562.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 265142621450611 - 2⁵ = 265142621450579 is a prime.

It is not a weakly prime, because it can be changed into another prime (265142621451611) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 132571310725305 + 132571310725306.

It is an arithmetic number, because the mean of its divisors is an integer number (132571310725306).

Almost surely, 2^{265142621450611} is an apocalyptic number.

265142621450611 is a deficient number, since it is larger than the sum of its proper divisors (1).

265142621450611 is an equidigital number, since it uses as much as digits as its factorization.

265142621450611 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 691200, while the sum is 46.

The spelling of 265142621450611 in words is "two hundred sixty-five trillion, one hundred forty-two billion, six hundred twenty-one million, four hundred fifty thousand, six hundred eleven".