6657430374325 has 6 divisors (see below), whose sum is σ = 8255213664194. Its totient is φ = 5325944299440.

The previous prime is 6657430374323. The next prime is 6657430374349. The reversal of 6657430374325 is 5234730347566.

It can be written as a sum of positive squares in 3 ways, for example, as 47960124004 + 6609470250321 = 218998^2 + 2570889^2 .

It is not a de Polignac number, because 6657430374325 - 2¹ = 6657430374323 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 (6657430374323) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 133148607462 + ... + 133148607511.

Almost surely, 2^{6657430374325} is an apocalyptic number.

It is an amenable number.

6657430374325 is a deficient number, since it is larger than the sum of its proper divisors (1597783289869).

6657430374325 is a wasteful number, since it uses less digits than its factorization.

6657430374325 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 266297214983 (or 266297214978 counting only the distinct ones).

The product of its (nonzero) digits is 38102400, while the sum is 55.

The spelling of 6657430374325 in words is "six trillion, six hundred fifty-seven billion, four hundred thirty million, three hundred seventy-four thousand, three hundred twenty-five".