6500166912 has 216 divisors, whose sum is σ = 19976829600. Its totient is φ = 2026819584.

The previous prime is 6500166901. The next prime is 6500166941. The reversal of 6500166912 is 2196610056.

6500166912 is a `hidden beast` number, since 6 + 500 + 1 + 66 + 91 + 2 = 666.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 3632514 + ... + 3634302.

Almost surely, 2^6500166912 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 6500166912, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (9988414800).

6500166912 is an abundant number, since it is smaller than the sum of its proper divisors (13476662688).

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

6500166912 is a wasteful number, since it uses less digits than its factorization.

6500166912 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1913 (or 1896 counting only the distinct ones).

The product of its (nonzero) digits is 19440, while the sum is 36.

The square root of 6500166912 is about 80623.6126206213. The cubic root of 6500166912 is about 1866.2715526540.

Adding to 6500166912 its reverse (2196610056), we get a palindrome (8696776968).

The spelling of 6500166912 in words is "six billion, five hundred million, one hundred sixty-six thousand, nine hundred twelve".