2173212663336 has 192 divisors, whose sum is σ = 6975963933120. Its totient is φ = 602511759360.

The previous prime is 2173212663311. The next prime is 2173212663337. The reversal of 2173212663336 is 6333662123712.

2173212663336 is a `hidden beast` number, since 2 + 1 + 7 + 3 + 2 + 1 + 2 + 6 + 633 + 3 + 6 = 666.

It is a junction number, because it is equal to n+sod(n) for n = 2173212663291 and 2173212663300.

It is not an unprimeable number, because it can be changed into a prime (2173212663337) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 229495 + ... + 2097401.

It is an arithmetic number, because the mean of its divisors is an integer number (36333145485).

Almost surely, 2^{2173212663336} is an apocalyptic number.

2173212663336 is a gapful number since it is divisible by the number (26) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2173212663336, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3487981966560).

2173212663336 is an abundant number, since it is smaller than the sum of its proper divisors (4802751269784).

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

2173212663336 is a wasteful number, since it uses less digits than its factorization.

2173212663336 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1868056 (or 1868049 counting only the distinct ones).

The product of its digits is 979776, while the sum is 45.

The spelling of 2173212663336 in words is "two trillion, one hundred seventy-three billion, two hundred twelve million, six hundred sixty-three thousand, three hundred thirty-six".