6547343616 has 144 divisors (see below), whose sum is σ = 21122041920. Its totient is φ = 1984020480.

The previous prime is 6547343611. The next prime is 6547343633. The reversal of 6547343616 is 6163437456.

6547343616 is a `hidden beast` number, since 6 + 547 + 3 + 43 + 61 + 6 = 666.

It is a tau number, because it is divible by the number of its divisors (144).

It is not an unprimeable number, because it can be changed into a prime (6547343611) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 32976 + ... + 119088.

Almost surely, 2^6547343616 is an apocalyptic number.

6547343616 is a gapful number since it is divisible by the number (66) 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 6547343616, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (10561020960).

6547343616 is an abundant number, since it is smaller than the sum of its proper divisors (14574698304).

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

6547343616 is a wasteful number, since it uses less digits than its factorization.

6547343616 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 86149 (or 86129 counting only the distinct ones).

The product of its digits is 1088640, while the sum is 45.

The square root of 6547343616 is about 80915.6574217870. The cubic root of 6547343616 is about 1870.7756622786.

The spelling of 6547343616 in words is "six billion, five hundred forty-seven million, three hundred forty-three thousand, six hundred sixteen".