6670544240 has 20 divisors (see below), whose sum is σ = 15509015544. Its totient is φ = 2668217664.

The previous prime is 6670544239. The next prime is 6670544273. The reversal of 6670544240 is 424450766.

It is a tau number, because it is divible by the number of its divisors (20).

It is a junction number, because it is equal to n+sod(n) for n = 6670544194 and 6670544203.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 41690822 + ... + 41690981.

Almost surely, 2^6670544240 is an apocalyptic number.

It is an amenable number.

6670544240 is an abundant number, since it is smaller than the sum of its proper divisors (8838471304).

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

6670544240 is a wasteful number, since it uses less digits than its factorization.

6670544240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 83381816 (or 83381810 counting only the distinct ones).

The product of its (nonzero) digits is 161280, while the sum is 38.

The square root of 6670544240 is about 81673.3998312792. The cubic root of 6670544240 is about 1882.4368806609.

The spelling of 6670544240 in words is "six billion, six hundred seventy million, five hundred forty-four thousand, two hundred forty".