6675297157 has 4 divisors (see below), whose sum is σ = 6675799180. Its totient is φ = 6674795136.

The previous prime is 6675297149. The next prime is 6675297257. The reversal of 6675297157 is 7517925766.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 5445111681 + 1230185476 = 73791^2 + 35074^2 .

It is a cyclic number.

It is not a de Polignac number, because 6675297157 - 2³ = 6675297149 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 6675297098 and 6675297107.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6675297127) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 230508 + ... + 257845.

It is an arithmetic number, because the mean of its divisors is an integer number (1668949795).

Almost surely, 2^6675297157 is an apocalyptic number.

It is an amenable number.

6675297157 is a deficient number, since it is larger than the sum of its proper divisors (502023).

6675297157 is a wasteful number, since it uses less digits than its factorization.

6675297157 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 502022.

The product of its digits is 5556600, while the sum is 55.

The square root of 6675297157 is about 81702.4917429083. The cubic root of 6675297157 is about 1882.8838677819.

The spelling of 6675297157 in words is "six billion, six hundred seventy-five million, two hundred ninety-seven thousand, one hundred fifty-seven".