1266065310678 has 64 divisors (see below), whose sum is σ = 2916820108800. Its totient is φ = 358869272832.

The previous prime is 1266065310677. The next prime is 1266065310701. The reversal of 1266065310678 is 8760135606621.

It is a self number, because there is not a number n which added to its sum of digits gives 1266065310678.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1266065310677) 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 in 31 ways as a sum of consecutive naturals, for example, 5053050 + ... + 5297682.

It is an arithmetic number, because the mean of its divisors is an integer number (45575314200).

Almost surely, 2^{1266065310678} is an apocalyptic number.

1266065310678 is an abundant number, since it is smaller than the sum of its proper divisors (1650754798122).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1266065310678 is a wasteful number, since it uses less digits than its factorization.

1266065310678 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 245621.

The product of its (nonzero) digits is 2177280, while the sum is 51.

The spelling of 1266065310678 in words is "one trillion, two hundred sixty-six billion, sixty-five million, three hundred ten thousand, six hundred seventy-eight".