6646314351 has 4 divisors (see below), whose sum is σ = 8861752472. Its totient is φ = 4430876232.

The previous prime is 6646314341. The next prime is 6646314359. The reversal of 6646314351 is 1534136466.

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

It is not a de Polignac number, because 6646314351 - 2¹⁸ = 6646052207 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 (6646314359) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1107719056 + ... + 1107719061.

It is an arithmetic number, because the mean of its divisors is an integer number (2215438118).

Almost surely, 2^6646314351 is an apocalyptic number.

6646314351 is a deficient number, since it is larger than the sum of its proper divisors (2215438121).

6646314351 is a wasteful number, since it uses less digits than its factorization.

6646314351 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2215438120.

The product of its digits is 155520, while the sum is 39.

The square root of 6646314351 is about 81524.9308555365. The cubic root of 6646314351 is about 1880.1548792540.

The spelling of 6646314351 in words is "six billion, six hundred forty-six million, three hundred fourteen thousand, three hundred fifty-one".