7066543680 has 1120 divisors, whose sum is σ = 31865011200. Its totient is φ = 1449197568.

The previous prime is 7066543661. The next prime is 7066543691. The reversal of 7066543680 is 863456607.

It is a tau number, because it is divible by the number of its divisors (1120).

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 159 ways as a sum of consecutive naturals, for example, 89449881 + ... + 89449959.

Almost surely, 2^7066543680 is an apocalyptic number.

7066543680 is a gapful number since it is divisible by the number (70) 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 7066543680, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (15932505600).

7066543680 is an abundant number, since it is smaller than the sum of its proper divisors (24798467520).

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

7066543680 is a wasteful number, since it uses less digits than its factorization.

7066543680 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 161 (or 142 counting only the distinct ones).

The product of its (nonzero) digits is 725760, while the sum is 45.

The square root of 7066543680 is about 84062.7365721578. The cubic root of 7066543680 is about 1918.9736702265.

The spelling of 7066543680 in words is "seven billion, sixty-six million, five hundred forty-three thousand, six hundred eighty".