6225664442 has 16 divisors (see below), whose sum is σ = 9650295072. Its totient is φ = 3010333200.

The previous prime is 6225664439. The next prime is 6225664447. The reversal of 6225664442 is 2444665226.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 6225664442.

It is not an unprimeable number, because it can be changed into a prime (6225664447) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 349688 + ... + 367059.

It is an arithmetic number, because the mean of its divisors is an integer number (603143442).

Almost surely, 2^6225664442 is an apocalyptic number.

6225664442 is a deficient number, since it is larger than the sum of its proper divisors (3424630630).

6225664442 is a wasteful number, since it uses less digits than its factorization.

6225664442 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 716893.

The product of its digits is 552960, while the sum is 41.

The square root of 6225664442 is about 78902.8798080273. The cubic root of 6225664442 is about 1839.6218939914.

The spelling of 6225664442 in words is "six billion, two hundred twenty-five million, six hundred sixty-four thousand, four hundred forty-two".