1266875883000 has 1792 divisors, whose sum is σ = 5551467667200. Its totient is φ = 264931430400.

The previous prime is 1266875882999. The next prime is 1266875883001. The reversal of 1266875883000 is 3885786621.

1266875883000 is a `hidden beast` number, since 1 + 26 + 6 + 8 + 7 + 588 + 30 + 0 + 0 = 666.

It is an interprime number because it is at equal distance from previous prime (1266875882999) and next prime (1266875883001).

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1266875883001) by changing a digit.

It is a polite number, since it can be written in 447 ways as a sum of consecutive naturals, for example, 11211290944 + ... + 11211291056.

It is an arithmetic number, because the mean of its divisors is an integer number (3097917225).

Almost surely, 2^{1266875883000} is an apocalyptic number.

1266875883000 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1266875883000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2775733833600).

1266875883000 is an abundant number, since it is smaller than the sum of its proper divisors (4284591784200).

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

1266875883000 is an equidigital number, since it uses as much as digits as its factorization.

1266875883000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 198 (or 143 counting only the distinct ones).

The product of its (nonzero) digits is 3870720, while the sum is 54.

The spelling of 1266875883000 in words is "one trillion, two hundred sixty-six billion, eight hundred seventy-five million, eight hundred eighty-three thousand".