6650555505 has 32 divisors (see below), whose sum is σ = 11667224448. Its totient is φ = 3208128000.

The previous prime is 6650555489. The next prime is 6650555521. The reversal of 6650555505 is 5055550566.

It is an interprime number because it is at equal distance from previous prime (6650555489) and next prime (6650555521).

It is not a de Polignac number, because 6650555505 - 2⁴ = 6650555489 is a prime.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 69796 + ... + 134805.

It is an arithmetic number, because the mean of its divisors is an integer number (364600764).

Almost surely, 2^6650555505 is an apocalyptic number.

It is an amenable number.

6650555505 is a deficient number, since it is larger than the sum of its proper divisors (5016668943).

6650555505 is a wasteful number, since it uses less digits than its factorization.

6650555505 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 204817.

The product of its (nonzero) digits is 562500, while the sum is 42.

The square root of 6650555505 is about 81550.9381000611. The cubic root of 6650555505 is about 1880.5547164387.

The spelling of 6650555505 in words is "six billion, six hundred fifty million, five hundred fifty-five thousand, five hundred five".