1266646020041 has 8 divisors (see below), whose sum is σ = 1296343472160. Its totient is φ = 1236959502912.

The previous prime is 1266646020011. The next prime is 1266646020061. The reversal of 1266646020041 is 1400206466621.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1266646020041 - 2²² = 1266641825737 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1266646019977 and 1266646020004.

It is not an unprimeable number, because it can be changed into a prime (1266646020011) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2499131 + ... + 2962928.

It is an arithmetic number, because the mean of its divisors is an integer number (162042934020).

Almost surely, 2^{1266646020041} is an apocalyptic number.

It is an amenable number.

1266646020041 is a deficient number, since it is larger than the sum of its proper divisors (29697452119).

1266646020041 is an equidigital number, since it uses as much as digits as its factorization.

1266646020041 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5467495.

The product of its (nonzero) digits is 82944, while the sum is 38.

The spelling of 1266646020041 in words is "one trillion, two hundred sixty-six billion, six hundred forty-six million, twenty thousand, forty-one".