6670565251 has 8 divisors (see below), whose sum is σ = 7651027040. Its totient is φ = 5696984448.

The previous prime is 6670565249. The next prime is 6670565303. The reversal of 6670565251 is 1525650766.

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 6670565251 - 2¹ = 6670565249 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 6670565198 and 6670565207.

It is not an unprimeable number, because it can be changed into a prime (6670565651) 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, 1718166 + ... + 1722043.

It is an arithmetic number, because the mean of its divisors is an integer number (956378380).

Almost surely, 2^6670565251 is an apocalyptic number.

6670565251 is a deficient number, since it is larger than the sum of its proper divisors (980461789).

6670565251 is a wasteful number, since it uses less digits than its factorization.

6670565251 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3440493.

The product of its (nonzero) digits is 378000, while the sum is 43.

The square root of 6670565251 is about 81673.5284593484. The cubic root of 6670565251 is about 1882.4388571034.

The spelling of 6670565251 in words is "six billion, six hundred seventy million, five hundred sixty-five thousand, two hundred fifty-one".