265423666111 has 2 divisors, whose sum is σ = 265423666112. Its totient is φ = 265423666110.

The previous prime is 265423666069. The next prime is 265423666139. The reversal of 265423666111 is 111666324562.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 265423666111 - 2³³ = 256833731519 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (265423666181) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 132711833055 + 132711833056.

It is an arithmetic number, because the mean of its divisors is an integer number (132711833056).

Almost surely, 2^265423666111 is an apocalyptic number.

265423666111 is a deficient number, since it is larger than the sum of its proper divisors (1).

265423666111 is an equidigital number, since it uses as much as digits as its factorization.

265423666111 is an evil number, because the sum of its binary digits is even.

The product of its digits is 311040, while the sum is 43.

The spelling of 265423666111 in words is "two hundred sixty-five billion, four hundred twenty-three million, six hundred sixty-six thousand, one hundred eleven".