6741221696 has 84 divisors (see below), whose sum is σ = 14870498580. Its totient is φ = 3029452800.

The previous prime is 6741221693. The next prime is 6741221723. The reversal of 6741221696 is 6961221476.

It can be written as a sum of positive squares in 2 ways, for example, as 2053902400 + 4687319296 = 45320^2 + 68464^2 .

It is a super-2 number, since 2×6741221696² = 90888139909242232832, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (44).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6741221693) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 684326 + ... + 694106.

It is an arithmetic number, because the mean of its divisors is an integer number (177029745).

Almost surely, 2^6741221696 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 6741221696, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (7435249290).

6741221696 is an abundant number, since it is smaller than the sum of its proper divisors (8129276884).

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

6741221696 is a wasteful number, since it uses less digits than its factorization.

6741221696 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9904 (or 9883 counting only the distinct ones).

The product of its digits is 217728, while the sum is 44.

The square root of 6741221696 is about 82104.9431885803. The cubic root of 6741221696 is about 1889.0619624040.

The spelling of 6741221696 in words is "six billion, seven hundred forty-one million, two hundred twenty-one thousand, six hundred ninety-six".