1266980810675 has 12 divisors (see below), whose sum is σ = 1604482934496. Its totient is φ = 992019016800.

The previous prime is 1266980810657. The next prime is 1266980810707. The reversal of 1266980810675 is 5760180896621.

It is a happy number.

It is not a de Polignac number, because 1266980810675 - 2⁶ = 1266980810611 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 539139596 + ... + 539141945.

It is an arithmetic number, because the mean of its divisors is an integer number (133706911208).

Almost surely, 2^{1266980810675} is an apocalyptic number.

1266980810675 is a deficient number, since it is larger than the sum of its proper divisors (337502123821).

1266980810675 is a wasteful number, since it uses less digits than its factorization.

1266980810675 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1078281598 (or 1078281593 counting only the distinct ones).

The product of its (nonzero) digits is 8709120, while the sum is 59.

The spelling of 1266980810675 in words is "one trillion, two hundred sixty-six billion, nine hundred eighty million, eight hundred ten thousand, six hundred seventy-five".