6640470327 has 16 divisors (see below), whose sum is σ = 9125659872. Its totient is φ = 4291983360.

The previous prime is 6640470313. The next prime is 6640470337. The reversal of 6640470327 is 7230740466.

It is not a de Polignac number, because 6640470327 - 2⁴ = 6640470311 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6640470337) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 75258 + ... + 137639.

It is an arithmetic number, because the mean of its divisors is an integer number (570353742).

Almost surely, 2^6640470327 is an apocalyptic number.

6640470327 is a deficient number, since it is larger than the sum of its proper divisors (2485189545).

6640470327 is a wasteful number, since it uses less digits than its factorization.

6640470327 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 213218.

The product of its (nonzero) digits is 169344, while the sum is 39.

The square root of 6640470327 is about 81489.0810293011. The cubic root of 6640470327 is about 1879.6036518281.

The spelling of 6640470327 in words is "six billion, six hundred forty million, four hundred seventy thousand, three hundred twenty-seven".