6658660253 has 8 divisors (see below), whose sum is σ = 7642559808. Its totient is φ = 5682926304.

The previous prime is 6658660243. The next prime is 6658660271. The reversal of 6658660253 is 3520668566.

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 6658660253 - 2²² = 6654465949 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 6658660198 and 6658660207.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6658660243) 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, 2039651 + ... + 2042912.

It is an arithmetic number, because the mean of its divisors is an integer number (955319976).

Almost surely, 2^6658660253 is an apocalyptic number.

It is an amenable number.

6658660253 is a deficient number, since it is larger than the sum of its proper divisors (983899555).

6658660253 is a wasteful number, since it uses less digits than its factorization.

6658660253 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4082803.

The product of its (nonzero) digits is 1555200, while the sum is 47.

The square root of 6658660253 is about 81600.6142930309. The cubic root of 6658660253 is about 1881.3183235739.

The spelling of 6658660253 in words is "six billion, six hundred fifty-eight million, six hundred sixty thousand, two hundred fifty-three".