6500221432 has 8 divisors (see below), whose sum is σ = 12187915200. Its totient is φ = 3250110712.

The previous prime is 6500221373. The next prime is 6500221433. The reversal of 6500221432 is 2341220056.

It is a tau number, because it is divible by the number of its divisors (8).

It is a junction number, because it is equal to n+sod(n) for n = 6500221397 and 6500221406.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6500221433) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 406263832 + ... + 406263847.

It is an arithmetic number, because the mean of its divisors is an integer number (1523489400).

Almost surely, 2^6500221432 is an apocalyptic number.

It is an amenable number.

6500221432 is a deficient number, since it is larger than the sum of its proper divisors (5687693768).

6500221432 is a wasteful number, since it uses less digits than its factorization.

6500221432 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 812527685 (or 812527681 counting only the distinct ones).

The product of its (nonzero) digits is 2880, while the sum is 25.

The square root of 6500221432 is about 80623.9507342576. The cubic root of 6500221432 is about 1866.2767704093.

Adding to 6500221432 its reverse (2341220056), we get a palindrome (8841441488).

The spelling of 6500221432 in words is "six billion, five hundred million, two hundred twenty-one thousand, four hundred thirty-two".