6650680605 has 32 divisors (see below), whose sum is σ = 10731446784. Its totient is φ = 3517034496.

The previous prime is 6650680583. The next prime is 6650680651. The reversal of 6650680605 is 5060860566.

It is not a de Polignac number, because 6650680605 - 2⁸ = 6650680349 is a prime.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 914092 + ... + 921338.

It is an arithmetic number, because the mean of its divisors is an integer number (335357712).

Almost surely, 2^6650680605 is an apocalyptic number.

It is an amenable number.

6650680605 is a deficient number, since it is larger than the sum of its proper divisors (4080766179).

6650680605 is a wasteful number, since it uses less digits than its factorization.

6650680605 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7765.

The product of its (nonzero) digits is 259200, while the sum is 42.

The square root of 6650680605 is about 81551.7051017329. The cubic root of 6650680605 is about 1880.5665077304.

The spelling of 6650680605 in words is "six billion, six hundred fifty million, six hundred eighty thousand, six hundred five".