5631666303 has 8 divisors (see below), whose sum is σ = 7509271216. Its totient is φ = 3754252800.

The previous prime is 5631666301. The next prime is 5631666319. The reversal of 5631666303 is 3036661365.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 5631666303 - 2¹ = 5631666301 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5631666301) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 48543 + ... + 116703.

It is an arithmetic number, because the mean of its divisors is an integer number (938658902).

Almost surely, 2^5631666303 is an apocalyptic number.

5631666303 is a deficient number, since it is larger than the sum of its proper divisors (1877604913).

5631666303 is a wasteful number, since it uses less digits than its factorization.

5631666303 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 95705.

The product of its (nonzero) digits is 174960, while the sum is 39.

The square root of 5631666303 is about 75044.4288605090. The cubic root of 5631666303 is about 1779.1489327707.

The spelling of 5631666303 in words is "five billion, six hundred thirty-one million, six hundred sixty-six thousand, three hundred three".