1316346226440 has 128 divisors (see below), whose sum is σ = 4609212456960. Its totient is φ = 294477444864.

The previous prime is 1316346226339. The next prime is 1316346226451. The reversal of 1316346226440 is 446226436131.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is a junction number, because it is equal to n+sod(n) for n = 1316346226392 and 1316346226401.

It is an unprimeable number.

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 31 ways as a sum of consecutive naturals, for example, 16631572 + ... + 16710531.

It is an arithmetic number, because the mean of its divisors is an integer number (36009472320).

Almost surely, 2^{1316346226440} is an apocalyptic number.

1316346226440 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1316346226440 is an abundant number, since it is smaller than the sum of its proper divisors (3292866230520).

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

1316346226440 is a wasteful number, since it uses less digits than its factorization.

1316346226440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33342171 (or 33342167 counting only the distinct ones).

The product of its (nonzero) digits is 497664, while the sum is 42.

The spelling of 1316346226440 in words is "one trillion, three hundred sixteen billion, three hundred forty-six million, two hundred twenty-six thousand, four hundred forty".