1266626640036 has 24 divisors (see below), whose sum is σ = 2957441747904. Its totient is φ = 421926081760.

The previous prime is 1266626640031. The next prime is 1266626640043. The reversal of 1266626640036 is 6300466266621.

It is not an unprimeable number, because it can be changed into a prime (1266626640031) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 35331120 + ... + 35366951.

It is an arithmetic number, because the mean of its divisors is an integer number (123226739496).

Almost surely, 2^{1266626640036} is an apocalyptic number.

It is an amenable number.

1266626640036 is an abundant number, since it is smaller than the sum of its proper divisors (1690815107868).

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

1266626640036 is a wasteful number, since it uses less digits than its factorization.

1266626640036 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 70699571 (or 70699569 counting only the distinct ones).

The product of its (nonzero) digits is 2239488, while the sum is 48.

The spelling of 1266626640036 in words is "one trillion, two hundred sixty-six billion, six hundred twenty-six million, six hundred forty thousand, thirty-six".