6222220616 has 8 divisors (see below), whose sum is σ = 11666663670. Its totient is φ = 3111110304.

The previous prime is 6222220607. The next prime is 6222220619. The reversal of 6222220616 is 6160222226.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 4074268900 + 2147951716 = 63830^2 + 46346^2 .

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

It is not an unprimeable number, because it can be changed into a prime (6222220619) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 388888781 + ... + 388888796.

Almost surely, 2^6222220616 is an apocalyptic number.

It is an amenable number.

6222220616 is a deficient number, since it is larger than the sum of its proper divisors (5444443054).

6222220616 is a wasteful number, since it uses less digits than its factorization.

6222220616 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 777777583 (or 777777579 counting only the distinct ones).

The product of its (nonzero) digits is 6912, while the sum is 29.

The square root of 6222220616 is about 78881.0535933693. The cubic root of 6222220616 is about 1839.2826259882.

The spelling of 6222220616 in words is "six billion, two hundred twenty-two million, two hundred twenty thousand, six hundred sixteen".