1316426636220 has 48 divisors (see below), whose sum is σ = 3687822384288. Its totient is φ = 350873026560.

The previous prime is 1316426636197. The next prime is 1316426636251. The reversal of 1316426636220 is 226366246131.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5317861 + ... + 5559900.

It is an arithmetic number, because the mean of its divisors is an integer number (76829633006).

Almost surely, 2^{1316426636220} is an apocalyptic number.

1316426636220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1316426636220 is an abundant number, since it is smaller than the sum of its proper divisors (2371395748068).

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

1316426636220 is a wasteful number, since it uses less digits than its factorization.

1316426636220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10879790 (or 10879788 counting only the distinct ones).

The product of its (nonzero) digits is 373248, while the sum is 42.

The spelling of 1316426636220 in words is "one trillion, three hundred sixteen billion, four hundred twenty-six million, six hundred thirty-six thousand, two hundred twenty".