6464255606 has 4 divisors (see below), whose sum is σ = 9696383412. Its totient is φ = 3232127802.

The previous prime is 6464255599. The next prime is 6464255657. The reversal of 6464255606 is 6065524646.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 6065524646 = 2 ⋅3032762323.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1616063900 + ... + 1616063903.

It is an arithmetic number, because the mean of its divisors is an integer number (2424095853).

Almost surely, 2^6464255606 is an apocalyptic number.

6464255606 is a deficient number, since it is larger than the sum of its proper divisors (3232127806).

6464255606 is a wasteful number, since it uses less digits than its factorization.

6464255606 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3232127805.

The product of its (nonzero) digits is 1036800, while the sum is 44.

The square root of 6464255606 is about 80400.5945624782. The cubic root of 6464255606 is about 1862.8283564194.

The spelling of 6464255606 in words is "six billion, four hundred sixty-four million, two hundred fifty-five thousand, six hundred six".