6520212266112 has 192 divisors, whose sum is σ = 19412904139200. Its totient is φ = 2098099304448.

The previous prime is 6520212266033. The next prime is 6520212266123. The reversal of 6520212266112 is 2116622120256.

6520212266112 is a `hidden beast` number, since 6 + 5 + 2 + 0 + 2 + 12 + 26 + 611 + 2 = 666.

It is a tau number, because it is divible by the number of its divisors (192).

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

It is an unprimeable number.

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 23 ways as a sum of consecutive naturals, for example, 251315413 + ... + 251341355.

It is an arithmetic number, because the mean of its divisors is an integer number (101108875725).

Almost surely, 2^{6520212266112} 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 6520212266112, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (9706452069600).

6520212266112 is an abundant number, since it is smaller than the sum of its proper divisors (12892691873088).

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

6520212266112 is a wasteful number, since it uses less digits than its factorization.

6520212266112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33515 (or 33500 counting only the distinct ones).

The product of its (nonzero) digits is 34560, while the sum is 36.

Adding to 6520212266112 its reverse (2116622120256), we get a palindrome (8636834386368).

The spelling of 6520212266112 in words is "six trillion, five hundred twenty billion, two hundred twelve million, two hundred sixty-six thousand, one hundred twelve".