1126640770266 has 64 divisors (see below), whose sum is σ = 2479202554752. Its totient is φ = 341301312000.

The previous prime is 1126640770261. The next prime is 1126640770303. The reversal of 1126640770266 is 6620770466211.

It is not an unprimeable number, because it can be changed into a prime (1126640770261) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 28258506 + ... + 28298346.

It is an arithmetic number, because the mean of its divisors is an integer number (38737539918).

Almost surely, 2^{1126640770266} is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1126640770266, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1239601277376).

1126640770266 is an abundant number, since it is smaller than the sum of its proper divisors (1352561784486).

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

1126640770266 is a wasteful number, since it uses less digits than its factorization.

1126640770266 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 43420 (or 43398 counting only the distinct ones).

The product of its (nonzero) digits is 1016064, while the sum is 48.

The spelling of 1126640770266 in words is "one trillion, one hundred twenty-six billion, six hundred forty million, seven hundred seventy thousand, two hundred sixty-six".