6663240253 has 8 divisors (see below), whose sum is σ = 7056037440. Its totient is φ = 6270536640.

The previous prime is 6663240209. The next prime is 6663240299. The reversal of 6663240253 is 3520423666.

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

It is a cyclic number.

It is not a de Polignac number, because 6663240253 - 2¹⁷ = 6663109181 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 (6663243253) 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, 168048 + ... + 203878.

It is an arithmetic number, because the mean of its divisors is an integer number (882004680).

Almost surely, 2^6663240253 is an apocalyptic number.

It is an amenable number.

6663240253 is a deficient number, since it is larger than the sum of its proper divisors (392797187).

6663240253 is a wasteful number, since it uses less digits than its factorization.

6663240253 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 46787.

The product of its (nonzero) digits is 155520, while the sum is 37.

The square root of 6663240253 is about 81628.6729832110. The cubic root of 6663240253 is about 1881.7495646350.

The spelling of 6663240253 in words is "six billion, six hundred sixty-three million, two hundred forty thousand, two hundred fifty-three".