6506145604 has 60 divisors (see below), whose sum is σ = 13742894144. Its totient is φ = 2640111408.

The previous prime is 6506145589. The next prime is 6506145641. The reversal of 6506145604 is 4065416056.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 3648097 + ... + 3649879.

Almost surely, 2^6506145604 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 6506145604, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (6871447072).

6506145604 is an abundant number, since it is smaller than the sum of its proper divisors (7236748540).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

6506145604 is an equidigital number, since it uses as much as digits as its factorization.

6506145604 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1870 (or 1811 counting only the distinct ones).

The product of its (nonzero) digits is 86400, while the sum is 37.

The square root of 6506145604 is about 80660.6818964482. The cubic root of 6506145604 is about 1866.8435607163.

The spelling of 6506145604 in words is "six billion, five hundred six million, one hundred forty-five thousand, six hundred four".