5661529344 has 90 divisors (see below), whose sum is σ = 16881717930. Its totient is φ = 1887169536.

The previous prime is 5661529333. The next prime is 5661529361. The reversal of 5661529344 is 4439251665.

5661529344 is a `hidden beast` number, since 5 + 6 + 615 + 29 + 3 + 4 + 4 = 666.

It can be written as a sum of positive squares in only one way, i.e., 5225554944 + 435974400 = 72288^2 + 20880^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 5661529344.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 115779 + ... + 157250.

Almost surely, 2^5661529344 is an apocalyptic number.

5661529344 is a gapful number since it is divisible by the number (54) formed by its first and last digit.

It is an amenable number.

5661529344 is an abundant number, since it is smaller than the sum of its proper divisors (11220188586).

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

5661529344 is an equidigital number, since it uses as much as digits as its factorization.

5661529344 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 273057 (or 273034 counting only the distinct ones).

The product of its digits is 777600, while the sum is 45.

The square root of 5661529344 is about 75243.1348629229. The cubic root of 5661529344 is about 1782.2881552860.

The spelling of 5661529344 in words is "five billion, six hundred sixty-one million, five hundred twenty-nine thousand, three hundred forty-four".