6220331644 has 48 divisors (see below), whose sum is σ = 11705057280. Its totient is φ = 2883366720.

The previous prime is 6220331641. The next prime is 6220331651. The reversal of 6220331644 is 4461330226.

It is a super-2 number, since 2×6220331644² = 77385051522695485472, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6220331641) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1734277 + ... + 1737859.

It is an arithmetic number, because the mean of its divisors is an integer number (243855360).

Almost surely, 2^6220331644 is an apocalyptic number.

It is an amenable number.

6220331644 is a deficient number, since it is larger than the sum of its proper divisors (5484725636).

6220331644 is a wasteful number, since it uses less digits than its factorization.

6220331644 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4090 (or 4088 counting only the distinct ones).

The product of its (nonzero) digits is 20736, while the sum is 31.

The square root of 6220331644 is about 78869.0791375175. The cubic root of 6220331644 is about 1839.0964810280.

The spelling of 6220331644 in words is "six billion, two hundred twenty million, three hundred thirty-one thousand, six hundred forty-four".