6466545 has 48 divisors (see below), whose sum is σ = 12130560. Its totient is φ = 3174912.

The previous prime is 6466543. The next prime is 6466547. The reversal of 6466545 is 5456646.

It is a happy number.

6466545 is a `hidden beast` number, since 646 + 6 + 5 + 4 + 5 = 666.

It is an interprime number because it is at equal distance from previous prime (6466543) and next prime (6466547).

It is not a de Polignac number, because 6466545 - 2¹ = 6466543 is a prime.

6466545 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (6466543) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 60382 + ... + 60488.

It is an arithmetic number, because the mean of its divisors is an integer number (252720).

Almost surely, 2^6466545 is an apocalyptic number.

It is an amenable number.

6466545 is a deficient number, since it is larger than the sum of its proper divisors (5664015).

6466545 is a wasteful number, since it uses less digits than its factorization.

6466545 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 214 (or 211 counting only the distinct ones).

The product of its digits is 86400, while the sum is 36.

The square root of 6466545 is about 2542.9402273746. The cubic root of 6466545 is about 186.3048244831.

The spelling of 6466545 in words is "six million, four hundred sixty-six thousand, five hundred forty-five".