1316041401636 has 144 divisors (see below), whose sum is σ = 3619051341360. Its totient is φ = 400831441920.

The previous prime is 1316041401617. The next prime is 1316041401637. The reversal of 1316041401636 is 6361041406131.

1316041401636 is a `hidden beast` number, since 1 + 3 + 1 + 6 + 0 + 4 + 14 + 0 + 1 + 636 = 666.

It can be written as a sum of positive squares in 8 ways, for example, as 470947297536 + 845094104100 = 686256^2 + 919290^2 .

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a self number, because there is not a number n which added to its sum of digits gives 1316041401636.

It is not an unprimeable number, because it can be changed into a prime (1316041401637) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 18505266 + ... + 18576246.

Almost surely, 2^{1316041401636} is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1316041401636, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1809525670680).

1316041401636 is an abundant number, since it is smaller than the sum of its proper divisors (2303009939724).

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

1316041401636 is a wasteful number, since it uses less digits than its factorization.

1316041401636 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 71406 (or 71401 counting only the distinct ones).

The product of its (nonzero) digits is 31104, while the sum is 36.

Adding to 1316041401636 its reverse (6361041406131), we get a palindrome (7677082807767).

The spelling of 1316041401636 in words is "one trillion, three hundred sixteen billion, forty-one million, four hundred one thousand, six hundred thirty-six".