6501195445 has 16 divisors (see below), whose sum is σ = 8163471600. Its totient is φ = 4964903424.

The previous prime is 6501195409. The next prime is 6501195461. The reversal of 6501195445 is 5445911056.

It is a happy number.

It can be written as a sum of positive squares in 8 ways, for example, as 518791729 + 5982403716 = 22777^2 + 77346^2 .

It is a cyclic number.

It is not a de Polignac number, because 6501195445 - 2⁹ = 6501194933 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 6501195398 and 6501195407.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 321720 + ... + 341329.

It is an arithmetic number, because the mean of its divisors is an integer number (510216975).

Almost surely, 2^6501195445 is an apocalyptic number.

It is an amenable number.

6501195445 is a deficient number, since it is larger than the sum of its proper divisors (1662276155).

6501195445 is a wasteful number, since it uses less digits than its factorization.

6501195445 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 663144.

The product of its (nonzero) digits is 108000, while the sum is 40.

The square root of 6501195445 is about 80629.9909773032. The cubic root of 6501195445 is about 1866.3699819544.

The spelling of 6501195445 in words is "six billion, five hundred one million, one hundred ninety-five thousand, four hundred forty-five".