5494035661 has 2 divisors, whose sum is σ = 5494035662. Its totient is φ = 5494035660.

The previous prime is 5494035647. The next prime is 5494035689. The reversal of 5494035661 is 1665304945.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 3869462025 + 1624573636 = 62205^2 + 40306^2 .

It is a cyclic number.

It is not a de Polignac number, because 5494035661 - 2²³ = 5485647053 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (5494095661) 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, 2747017830 + 2747017831.

It is an arithmetic number, because the mean of its divisors is an integer number (2747017831).

Almost surely, 2^5494035661 is an apocalyptic number.

It is an amenable number.

5494035661 is a deficient number, since it is larger than the sum of its proper divisors (1).

5494035661 is an equidigital number, since it uses as much as digits as its factorization.

5494035661 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 388800, while the sum is 43.

The square root of 5494035661 is about 74121.7623980974. The cubic root of 5494035661 is about 1764.5358703861.

It can be divided in two parts, 54940 and 35661, that added together give a square (90601 = 301²).

The spelling of 5494035661 in words is "five billion, four hundred ninety-four million, thirty-five thousand, six hundred sixty-one".