6680415257 has 8 divisors (see below), whose sum is σ = 7032785760. Its totient is φ = 6328121760.

The previous prime is 6680415233. The next prime is 6680415283. The reversal of 6680415257 is 7525140866.

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

It is not a de Polignac number, because 6680415257 - 2⁶ = 6680415193 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (6680415227) 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, 271757 + ... + 295317.

It is an arithmetic number, because the mean of its divisors is an integer number (879098220).

Almost surely, 2^6680415257 is an apocalyptic number.

It is an amenable number.

6680415257 is a deficient number, since it is larger than the sum of its proper divisors (352370503).

6680415257 is a wasteful number, since it uses less digits than its factorization.

6680415257 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 38503.

The product of its (nonzero) digits is 403200, while the sum is 44.

The square root of 6680415257 is about 81733.8073076252. The cubic root of 6680415257 is about 1883.3649612739.

The spelling of 6680415257 in words is "six billion, six hundred eighty million, four hundred fifteen thousand, two hundred fifty-seven".