1266083505304 has 64 divisors (see below), whose sum is σ = 2538084572640. Its totient is φ = 589997506560.

The previous prime is 1266083505289. The next prime is 1266083505319. The reversal of 1266083505304 is 4035053806621.

It is an interprime number because it is at equal distance from previous prime (1266083505289) and next prime (1266083505319).

It is a super-2 number, since 2×1266083505304² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 17221584 + ... + 17294944.

Almost surely, 2^{1266083505304} is an apocalyptic number.

It is an amenable number.

1266083505304 is an abundant number, since it is smaller than the sum of its proper divisors (1272001067336).

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

1266083505304 is a wasteful number, since it uses less digits than its factorization.

1266083505304 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 74620 (or 74616 counting only the distinct ones).

The product of its (nonzero) digits is 518400, while the sum is 43.

The spelling of 1266083505304 in words is "one trillion, two hundred sixty-six billion, eighty-three million, five hundred five thousand, three hundred four".