1311045166444 has 96 divisors (see below), whose sum is σ = 2579391360000. Its totient is φ = 579259040256.

The previous prime is 1311045166433. The next prime is 1311045166481. The reversal of 1311045166444 is 4446615401131.

It is a junction number, because it is equal to n+sod(n) for n = 1311045166397 and 1311045166406.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 17656107 + ... + 17730205.

It is an arithmetic number, because the mean of its divisors is an integer number (26868660000).

Almost surely, 2^{1311045166444} is an apocalyptic number.

It is an amenable number.

1311045166444 is a deficient number, since it is larger than the sum of its proper divisors (1268346193556).

1311045166444 is a wasteful number, since it uses less digits than its factorization.

1311045166444 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 74327 (or 74325 counting only the distinct ones).

The product of its (nonzero) digits is 138240, while the sum is 40.

The spelling of 1311045166444 in words is "one trillion, three hundred eleven billion, forty-five million, one hundred sixty-six thousand, four hundred forty-four".