6551723563 has 8 divisors (see below), whose sum is σ = 8168382720. Its totient is φ = 5105239080.

The previous prime is 6551723561. The next prime is 6551723569. The reversal of 6551723563 is 3653271556.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 6551723563 - 2¹ = 6551723561 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (6551723561) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 42543583 + ... + 42543736.

It is an arithmetic number, because the mean of its divisors is an integer number (1021047840).

Almost surely, 2^6551723563 is an apocalyptic number.

6551723563 is a deficient number, since it is larger than the sum of its proper divisors (1616659157).

6551723563 is a wasteful number, since it uses less digits than its factorization.

6551723563 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 85087337.

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

The square root of 6551723563 is about 80942.7177885695. The cubic root of 6551723563 is about 1871.1927307501.

The spelling of 6551723563 in words is "six billion, five hundred fifty-one million, seven hundred twenty-three thousand, five hundred sixty-three".