6650775243 has 96 divisors (see below), whose sum is σ = 12061163520. Its totient is φ = 3604487040.

The previous prime is 6650775239. The next prime is 6650775259. The reversal of 6650775243 is 3425770566.

6650775243 is a `hidden beast` number, since 6 + 6 + 50 + 77 + 524 + 3 = 666.

It is not a de Polignac number, because 6650775243 - 2² = 6650775239 is a prime.

It is a super-2 number, since 2×6650775243² = 88465622665803418098, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (6650775203) by changing a digit.

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 95 ways as a sum of consecutive naturals, for example, 3863623 + ... + 3865343.

It is an arithmetic number, because the mean of its divisors is an integer number (125637120).

Almost surely, 2^6650775243 is an apocalyptic number.

6650775243 is a gapful number since it is divisible by the number (63) formed by its first and last digit.

6650775243 is a deficient number, since it is larger than the sum of its proper divisors (5410388277).

6650775243 is a wasteful number, since it uses less digits than its factorization.

6650775243 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1894 (or 1881 counting only the distinct ones).

The product of its (nonzero) digits is 1058400, while the sum is 45.

The square root of 6650775243 is about 81552.2853327851. The cubic root of 6650775243 is about 1880.5754277302.

The spelling of 6650775243 in words is "six billion, six hundred fifty million, seven hundred seventy-five thousand, two hundred forty-three".