1316402311644 has 96 divisors (see below), whose sum is σ = 3940662351360. Its totient is φ = 372237451776.

The previous prime is 1316402311643. The next prime is 1316402311663. The reversal of 1316402311644 is 4461132046131.

1316402311644 is a `hidden beast` number, since 1 + 3 + 1 + 6 + 4 + 0 + 2 + 3 + 1 + 1 + 644 = 666.

It is a super-3 number, since 3×1316402311644³ (a number of 37 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

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

It is a junction number, because it is equal to n+sod(n) for n = 1316402311599 and 1316402311608.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1316402311643) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 8902302 + ... + 9048965.

It is an arithmetic number, because the mean of its divisors is an integer number (41048566160).

Almost surely, 2^{1316402311644} is an apocalyptic number.

1316402311644 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

1316402311644 is an abundant number, since it is smaller than the sum of its proper divisors (2624260039716).

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

1316402311644 is a wasteful number, since it uses less digits than its factorization.

1316402311644 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17951384 (or 17951376 counting only the distinct ones).

The product of its (nonzero) digits is 41472, while the sum is 36.

Adding to 1316402311644 its reverse (4461132046131), we get a palindrome (5777534357775).

The spelling of 1316402311644 in words is "one trillion, three hundred sixteen billion, four hundred two million, three hundred eleven thousand, six hundred forty-four".