3551320051312 has 160 divisors (see below), whose sum is σ = 8163756771840. Its totient is φ = 1479284352000.

The previous prime is 3551320051297. The next prime is 3551320051319. The reversal of 3551320051312 is 2131500231553.

It is a super-2 number, since 2×3551320051312² (a number of 26 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3551320051319) 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, 12442362 + ... + 12724582.

It is an arithmetic number, because the mean of its divisors is an integer number (51023479824).

Almost surely, 2^{3551320051312} 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 3551320051312, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4081878385920).

3551320051312 is an abundant number, since it is smaller than the sum of its proper divisors (4612436720528).

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

3551320051312 is a wasteful number, since it uses less digits than its factorization.

3551320051312 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 282383 (or 282377 counting only the distinct ones).

The product of its (nonzero) digits is 13500, while the sum is 31.

Adding to 3551320051312 its reverse (2131500231553), we get a palindrome (5682820282865).

The spelling of 3551320051312 in words is "three trillion, five hundred fifty-one billion, three hundred twenty million, fifty-one thousand, three hundred twelve".