6605347551 has 16 divisors (see below), whose sum is σ = 9656558208. Its totient is φ = 3982916000.

The previous prime is 6605347543. The next prime is 6605347577. The reversal of 6605347551 is 1557435066.

It is a cyclic number.

It is not a de Polignac number, because 6605347551 - 2³ = 6605347543 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6605347531) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 501525 + ... + 514526.

It is an arithmetic number, because the mean of its divisors is an integer number (603534888).

Almost surely, 2^6605347551 is an apocalyptic number.

6605347551 is a deficient number, since it is larger than the sum of its proper divisors (3051210657).

6605347551 is a wasteful number, since it uses less digits than its factorization.

6605347551 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1016262.

The product of its (nonzero) digits is 378000, while the sum is 42.

The square root of 6605347551 is about 81273.2892837493. The cubic root of 6605347551 is about 1876.2839254538.

The spelling of 6605347551 in words is "six billion, six hundred five million, three hundred forty-seven thousand, five hundred fifty-one".