6650637550 has 24 divisors (see below), whose sum is σ = 12374739216. Its totient is φ = 2659275840.

The previous prime is 6650637533. The next prime is 6650637551. The reversal of 6650637550 is 557360566.

It is a junction number, because it is equal to n+sod(n) for n = 6650637497 and 6650637506.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6650637551) 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 11 ways as a sum of consecutive naturals, for example, 121314 + ... + 167386.

It is an arithmetic number, because the mean of its divisors is an integer number (515614134).

Almost surely, 2^6650637550 is an apocalyptic number.

6650637550 is a deficient number, since it is larger than the sum of its proper divisors (5724101666).

6650637550 is a wasteful number, since it uses less digits than its factorization.

6650637550 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 48972 (or 48967 counting only the distinct ones).

The product of its (nonzero) digits is 567000, while the sum is 43.

The square root of 6650637550 is about 81551.4411276711. The cubic root of 6650637550 is about 1880.5624496011.

The spelling of 6650637550 in words is "six billion, six hundred fifty million, six hundred thirty-seven thousand, five hundred fifty".