5441956661 has 2 divisors, whose sum is σ = 5441956662. Its totient is φ = 5441956660.

The previous prime is 5441956657. The next prime is 5441956673. The reversal of 5441956661 is 1666591445.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 5145910225 + 296046436 = 71735^2 + 17206^2 .

It is a cyclic number.

It is not a de Polignac number, because 5441956661 - 2² = 5441956657 is a prime.

It is a super-2 number, since 2×5441956661² = 59229784600404537842, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (5441952661) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2720978330 + 2720978331.

It is an arithmetic number, because the mean of its divisors is an integer number (2720978331).

Almost surely, 2^5441956661 is an apocalyptic number.

It is an amenable number.

5441956661 is a deficient number, since it is larger than the sum of its proper divisors (1).

5441956661 is an equidigital number, since it uses as much as digits as its factorization.

5441956661 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 777600, while the sum is 47.

The square root of 5441956661 is about 73769.6188210296. The cubic root of 5441956661 is about 1758.9427040077.

The spelling of 5441956661 in words is "five billion, four hundred forty-one million, nine hundred fifty-six thousand, six hundred sixty-one".