6658722253 has 2 divisors, whose sum is σ = 6658722254. Its totient is φ = 6658722252.

The previous prime is 6658722251. The next prime is 6658722319. The reversal of 6658722253 is 3522278566.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 6112425124 + 546297129 = 78182^2 + 23373^2 .

It is a cyclic number.

It is not a de Polignac number, because 6658722253 - 2¹ = 6658722251 is a prime.

Together with 6658722251, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (6658722251) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3329361126 + 3329361127.

It is an arithmetic number, because the mean of its divisors is an integer number (3329361127).

Almost surely, 2^6658722253 is an apocalyptic number.

It is an amenable number.

6658722253 is a deficient number, since it is larger than the sum of its proper divisors (1).

6658722253 is an equidigital number, since it uses as much as digits as its factorization.

6658722253 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1209600, while the sum is 46.

The square root of 6658722253 is about 81600.9941912474. The cubic root of 6658722253 is about 1881.3241626551.

The spelling of 6658722253 in words is "six billion, six hundred fifty-eight million, seven hundred twenty-two thousand, two hundred fifty-three".