1266112412466 has 144 divisors (see below), whose sum is σ = 2881331411616. Its totient is φ = 370610803200.

The previous prime is 1266112412459. The next prime is 1266112412483. The reversal of 1266112412466 is 6642142116621.

It is a happy number.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 476518210 + ... + 476520866.

It is an arithmetic number, because the mean of its divisors is an integer number (20009245914).

Almost surely, 2^{1266112412466} is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1266112412466, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1440665705808).

1266112412466 is an abundant number, since it is smaller than the sum of its proper divisors (1615218999150).

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

1266112412466 is a wasteful number, since it uses less digits than its factorization.

1266112412466 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3429 (or 3387 counting only the distinct ones).

The product of its digits is 165888, while the sum is 42.

The spelling of 1266112412466 in words is "one trillion, two hundred sixty-six billion, one hundred twelve million, four hundred twelve thousand, four hundred sixty-six".