1266676845 has 32 divisors (see below), whose sum is σ = 2323147008. Its totient is φ = 577317888.

The previous prime is 1266676823. The next prime is 1266676871. The reversal of 1266676845 is 5486766621.

It is not a de Polignac number, because 1266676845 - 2⁵ = 1266676813 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 17487 + ... + 53283.

It is an arithmetic number, because the mean of its divisors is an integer number (72598344).

Almost surely, 2^1266676845 is an apocalyptic number.

1266676845 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1266676845 is a deficient number, since it is larger than the sum of its proper divisors (1056470163).

1266676845 is a wasteful number, since it uses less digits than its factorization.

1266676845 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 36149.

The product of its digits is 2903040, while the sum is 51.

The square root of 1266676845 is about 35590.4038330559. The cubic root of 1266676845 is about 1081.9867536187.

The spelling of 1266676845 in words is "one billion, two hundred sixty-six million, six hundred seventy-six thousand, eight hundred forty-five".