6222164640 has 96 divisors (see below), whose sum is σ = 19749635136. Its totient is φ = 1646561280.

The previous prime is 6222164621. The next prime is 6222164653. The reversal of 6222164640 is 464612226.

It is a tau number, because it is divible by the number of its divisors (96).

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 15 ways as a sum of consecutive naturals, for example, 13404 + ... + 112356.

It is an arithmetic number, because the mean of its divisors is an integer number (205725366).

Almost surely, 2^6222164640 is an apocalyptic number.

6222164640 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 6222164640, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (9874817568).

6222164640 is an abundant number, since it is smaller than the sum of its proper divisors (13527470496).

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

6222164640 is a wasteful number, since it uses less digits than its factorization.

6222164640 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 99102 (or 99094 counting only the distinct ones).

The product of its (nonzero) digits is 27648, while the sum is 33.

The square root of 6222164640 is about 78880.6987798663. The cubic root of 6222164640 is about 1839.2771104871.

Adding to 6222164640 its reverse (464612226), we get a palindrome (6686776866).

The spelling of 6222164640 in words is "six billion, two hundred twenty-two million, one hundred sixty-four thousand, six hundred forty".