6605151605 has 8 divisors (see below), whose sum is σ = 8535888312. Its totient is φ = 4877650368.

The previous prime is 6605151601. The next prime is 6605151613. The reversal of 6605151605 is 5061515066.

It can be written as a sum of positive squares in 4 ways, for example, as 67782289 + 6537369316 = 8233^2 + 80854^2 .

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 6605151605 - 2² = 6605151601 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6605151601) 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, 50808794 + ... + 50808923.

It is an arithmetic number, because the mean of its divisors is an integer number (1066986039).

Almost surely, 2^6605151605 is an apocalyptic number.

6605151605 is a gapful number since it is divisible by the number (65) formed by its first and last digit.

It is an amenable number.

6605151605 is a deficient number, since it is larger than the sum of its proper divisors (1930736707).

6605151605 is a wasteful number, since it uses less digits than its factorization.

6605151605 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 101617735.

The product of its (nonzero) digits is 27000, while the sum is 35.

The square root of 6605151605 is about 81272.0837988051. The cubic root of 6605151605 is about 1876.2653721043.

The spelling of 6605151605 in words is "six billion, six hundred five million, one hundred fifty-one thousand, six hundred five".