5403360665 has 16 divisors (see below), whose sum is σ = 6870035088. Its totient is φ = 4065693696.

The previous prime is 5403360661. The next prime is 5403360679. The reversal of 5403360665 is 5660633045.

It is a happy number.

It can be written as a sum of positive squares in 8 ways, for example, as 375274384 + 5028086281 = 19372^2 + 70909^2 .

It is a cyclic number.

It is not a de Polignac number, because 5403360665 - 2² = 5403360661 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (5403360661) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 111539 + ... + 152471.

It is an arithmetic number, because the mean of its divisors is an integer number (429377193).

Almost surely, 2^5403360665 is an apocalyptic number.

It is an amenable number.

5403360665 is a deficient number, since it is larger than the sum of its proper divisors (1466674423).

5403360665 is a wasteful number, since it uses less digits than its factorization.

5403360665 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 42508.

The product of its (nonzero) digits is 194400, while the sum is 38.

The square root of 5403360665 is about 73507.5551559158. Note that the first 3 decimals coincide. The cubic root of 5403360665 is about 1754.7745172334.

The spelling of 5403360665 in words is "five billion, four hundred three million, three hundred sixty thousand, six hundred sixty-five".