5661414644 has 12 divisors (see below), whose sum is σ = 10149121668. Its totient is φ = 2761665600.

The previous prime is 5661414643. The next prime is 5661414677. The reversal of 5661414644 is 4464141665.

It can be written as a sum of positive squares in 2 ways, for example, as 1865376100 + 3796038544 = 43190^2 + 61612^2 .

It is a Harshad number since it is a multiple of its sum of digits (41).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5661414643) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 17260247 + ... + 17260574.

It is an arithmetic number, because the mean of its divisors is an integer number (845760139).

Almost surely, 2^5661414644 is an apocalyptic number.

It is an amenable number.

5661414644 is a deficient number, since it is larger than the sum of its proper divisors (4487707024).

5661414644 is a wasteful number, since it uses less digits than its factorization.

5661414644 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 34520866 (or 34520864 counting only the distinct ones).

The product of its digits is 276480, while the sum is 41.

The square root of 5661414644 is about 75242.3726632806. The cubic root of 5661414644 is about 1782.2761190899.

The spelling of 5661414644 in words is "five billion, six hundred sixty-one million, four hundred fourteen thousand, six hundred forty-four".