6711880145 has 8 divisors (see below), whose sum is σ = 8070082920. Its totient is φ = 5358952960.

The previous prime is 6711880141. The next prime is 6711880157. The reversal of 6711880145 is 5410881176.

It can be written as a sum of positive squares in 4 ways, for example, as 3103715521 + 3608164624 = 55711^2 + 60068^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 6711880145 - 2² = 6711880141 is a prime.

It is not an unprimeable number, because it can be changed into a prime (6711880141) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1316096 + ... + 1321185.

It is an arithmetic number, because the mean of its divisors is an integer number (1008760365).

Almost surely, 2^6711880145 is an apocalyptic number.

It is an amenable number.

6711880145 is a deficient number, since it is larger than the sum of its proper divisors (1358202775).

6711880145 is a wasteful number, since it uses less digits than its factorization.

6711880145 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2637795.

The product of its (nonzero) digits is 53760, while the sum is 41.

The square root of 6711880145 is about 81926.0651136133. The cubic root of 6711880145 is about 1886.3172264451.

The spelling of 6711880145 in words is "six billion, seven hundred eleven million, eight hundred eighty thousand, one hundred forty-five".