265456666351 has 2 divisors, whose sum is σ = 265456666352. Its totient is φ = 265456666350.

The previous prime is 265456666331. The next prime is 265456666373. The reversal of 265456666351 is 153666654562.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 265456666351 - 2¹⁵ = 265456633583 is a prime.

It is a super-2 number, since 2×265456666351² (a number of 24 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 265456666292 and 265456666301.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (265456666331) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 132728333175 + 132728333176.

It is an arithmetic number, because the mean of its divisors is an integer number (132728333176).

Almost surely, 2^265456666351 is an apocalyptic number.

265456666351 is a deficient number, since it is larger than the sum of its proper divisors (1).

265456666351 is an equidigital number, since it uses as much as digits as its factorization.

265456666351 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 23328000, while the sum is 55.

The spelling of 265456666351 in words is "two hundred sixty-five billion, four hundred fifty-six million, six hundred sixty-six thousand, three hundred fifty-one".