6505151603 has 2 divisors, whose sum is σ = 6505151604. Its totient is φ = 6505151602.

The previous prime is 6505151593. The next prime is 6505151669. The reversal of 6505151603 is 3061515056.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 6505151603 - 2⁶ = 6505151539 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 6505151603.

It is not a weakly prime, because it can be changed into another prime (6505151903) by changing a digit.

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 as a sum of consecutive naturals, namely, 3252575801 + 3252575802.

It is an arithmetic number, because the mean of its divisors is an integer number (3252575802).

Almost surely, 2^6505151603 is an apocalyptic number.

6505151603 is a deficient number, since it is larger than the sum of its proper divisors (1).

6505151603 is an equidigital number, since it uses as much as digits as its factorization.

6505151603 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 13500, while the sum is 32.

The square root of 6505151603 is about 80654.5200407268. The cubic root of 6505151603 is about 1866.7484845126.

Adding to 6505151603 its reverse (3061515056), we get a palindrome (9566666659).

The spelling of 6505151603 in words is "six billion, five hundred five million, one hundred fifty-one thousand, six hundred three".