6550744765 has 8 divisors (see below), whose sum is σ = 7861964760. Its totient is φ = 5239881792.

The previous prime is 6550744729. The next prime is 6550744787. The reversal of 6550744765 is 5674470556.

It can be written as a sum of positive squares in 4 ways, for example, as 2478645796 + 4072098969 = 49786^2 + 63813^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-6550744765 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 47074 + ... + 123763.

It is an arithmetic number, because the mean of its divisors is an integer number (982745595).

Almost surely, 2^6550744765 is an apocalyptic number.

It is an amenable number.

6550744765 is a deficient number, since it is larger than the sum of its proper divisors (1311219995).

6550744765 is a wasteful number, since it uses less digits than its factorization.

6550744765 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 178511.

The product of its (nonzero) digits is 3528000, while the sum is 49.

The square root of 6550744765 is about 80936.6713239431. The cubic root of 6550744765 is about 1871.0995435198.

The spelling of 6550744765 in words is "six billion, five hundred fifty million, seven hundred forty-four thousand, seven hundred sixty-five".