1266015028339 has 2 divisors, whose sum is σ = 1266015028340. Its totient is φ = 1266015028338.

The previous prime is 1266015028303. The next prime is 1266015028349. The reversal of 1266015028339 is 9338205106621.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1266015028339 - 2²³ = 1266006639731 is a prime.

It is not a weakly prime, because it can be changed into another prime (1266015028349) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 633007514169 + 633007514170.

It is an arithmetic number, because the mean of its divisors is an integer number (633007514170).

Almost surely, 2^{1266015028339} is an apocalyptic number.

1266015028339 is a deficient number, since it is larger than the sum of its proper divisors (1).

1266015028339 is an equidigital number, since it uses as much as digits as its factorization.

1266015028339 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 466560, while the sum is 46.

The spelling of 1266015028339 in words is "one trillion, two hundred sixty-six billion, fifteen million, twenty-eight thousand, three hundred thirty-nine".