6550197765 has 8 divisors (see below), whose sum is σ = 10480316448. Its totient is φ = 3493438800.

The previous prime is 6550197757. The next prime is 6550197779. The reversal of 6550197765 is 5677910556.

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

It is not a de Polignac number, because 6550197765 - 2³ = 6550197757 is a prime.

It is a super-2 number, since 2×6550197765² = 85810181521221990450, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 218339911 + ... + 218339940.

It is an arithmetic number, because the mean of its divisors is an integer number (1310039556).

Almost surely, 2^6550197765 is an apocalyptic number.

It is an amenable number.

6550197765 is a deficient number, since it is larger than the sum of its proper divisors (3930118683).

6550197765 is a wasteful number, since it uses less digits than its factorization.

6550197765 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 436679859.

The product of its (nonzero) digits is 1984500, while the sum is 51.

The square root of 6550197765 is about 80933.2920682212. The cubic root of 6550197765 is about 1871.0474619130.

The spelling of 6550197765 in words is "six billion, five hundred fifty million, one hundred ninety-seven thousand, seven hundred sixty-five".