6670611650 has 12 divisors (see below), whose sum is σ = 12407337762. Its totient is φ = 2668244640.

The previous prime is 6670611643. The next prime is 6670611683. The reversal of 6670611650 is 561160766.

It can be written as a sum of positive squares in 3 ways, for example, as 3322484881 + 3348126769 = 57641^2 + 57863^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 66706067 + ... + 66706166.

Almost surely, 2^6670611650 is an apocalyptic number.

6670611650 is a deficient number, since it is larger than the sum of its proper divisors (5736726112).

6670611650 is a wasteful number, since it uses less digits than its factorization.

6670611650 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 133412245 (or 133412240 counting only the distinct ones).

The product of its (nonzero) digits is 45360, while the sum is 38.

The square root of 6670611650 is about 81673.8125104981. The cubic root of 6670611650 is about 1882.4432217049.

The spelling of 6670611650 in words is "six billion, six hundred seventy million, six hundred eleven thousand, six hundred fifty".