6221564264 has 16 divisors (see below), whose sum is σ = 11671676100. Its totient is φ = 3109117312.

The previous prime is 6221564243. The next prime is 6221564339. The reversal of 6221564264 is 4624651226.

It can be written as a sum of positive squares in 2 ways, for example, as 6012761764 + 208802500 = 77542^2 + 14450^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 192149 + ... + 222180.

Almost surely, 2^6221564264 is an apocalyptic number.

It is an amenable number.

6221564264 is a deficient number, since it is larger than the sum of its proper divisors (5450111836).

6221564264 is a wasteful number, since it uses less digits than its factorization.

6221564264 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 416212 (or 416208 counting only the distinct ones).

The product of its digits is 138240, while the sum is 38.

The square root of 6221564264 is about 78876.8930929712. The cubic root of 6221564264 is about 1839.2179513672.

The spelling of 6221564264 in words is "six billion, two hundred twenty-one million, five hundred sixty-four thousand, two hundred sixty-four".