6501298905 has 24 divisors (see below), whose sum is σ = 11281413312. Its totient is φ = 3463514784.

The previous prime is 6501298891. The next prime is 6501298907. The reversal of 6501298905 is 5098921056.

It is not a de Polignac number, because 6501298905 - 2²⁵ = 6467744473 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is an alternating number because its digits alternate between even and odd.

It is not an unprimeable number, because it can be changed into a prime (6501298907) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 38829 + ... + 120458.

It is an arithmetic number, because the mean of its divisors is an integer number (470058888).

Almost surely, 2^6501298905 is an apocalyptic number.

It is an amenable number.

6501298905 is a deficient number, since it is larger than the sum of its proper divisors (4780114407).

6501298905 is a wasteful number, since it uses less digits than its factorization.

6501298905 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 160205 (or 160202 counting only the distinct ones).

The product of its (nonzero) digits is 194400, while the sum is 45.

The square root of 6501298905 is about 80630.6325474382. The cubic root of 6501298905 is about 1866.3798823702.

The spelling of 6501298905 in words is "six billion, five hundred one million, two hundred ninety-eight thousand, nine hundred five".