6465225646 has 32 divisors (see below), whose sum is σ = 11495531520. Its totient is φ = 2694254400.

The previous prime is 6465225623. The next prime is 6465225661.

6465225646 is nontrivially palindromic in base 10.

It is a super-2 number, since 2×6465225646² = 83598285307392234632, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 6465225596 and 6465225605.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 236511 + ... + 262426.

It is an arithmetic number, because the mean of its divisors is an integer number (359235360).

Almost surely, 2^6465225646 is an apocalyptic number.

6465225646 is a deficient number, since it is larger than the sum of its proper divisors (5030305874).

6465225646 is a wasteful number, since it uses less digits than its factorization.

6465225646 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 499000.

The product of its digits is 2073600, while the sum is 46.

The square root of 6465225646 is about 80406.6268786348. The cubic root of 6465225646 is about 1862.9215317592.

The spelling of 6465225646 in words is "six billion, four hundred sixty-five million, two hundred twenty-five thousand, six hundred forty-six".