664546112010 has 96 divisors (see below), whose sum is σ = 1935837626112. Its totient is φ = 156747968640.

The previous prime is 664546111997. The next prime is 664546112051. The reversal of 664546112010 is 10211645466.

664546112010 is a `hidden beast` number, since 6 + 6 + 4 + 5 + 4 + 611 + 20 + 10 = 666.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 9034434 + ... + 9107693.

It is an arithmetic number, because the mean of its divisors is an integer number (20164975272).

Almost surely, 2^664546112010 is an apocalyptic number.

664546112010 is an abundant number, since it is smaller than the sum of its proper divisors (1271291514102).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

664546112010 is a wasteful number, since it uses less digits than its factorization.

664546112010 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18142188 (or 18142185 counting only the distinct ones).

The product of its (nonzero) digits is 34560, while the sum is 36.

Adding to 664546112010 its reverse (10211645466), we get a palindrome (674757757476).

The spelling of 664546112010 in words is "six hundred sixty-four billion, five hundred forty-six million, one hundred twelve thousand, ten".