664040010 has 16 divisors (see below), whose sum is σ = 1593696096. Its totient is φ = 177077328.

The previous prime is 664039997. The next prime is 664040011. The reversal of 664040010 is 10040466.

It is not an unprimeable number, because it can be changed into a prime (664040011) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 11067304 + ... + 11067363.

It is an arithmetic number, because the mean of its divisors is an integer number (99606006).

Almost surely, 2^664040010 is an apocalyptic number.

664040010 is an abundant number, since it is smaller than the sum of its proper divisors (929656086).

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

664040010 is a wasteful number, since it uses less digits than its factorization.

664040010 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22134677.

The product of its (nonzero) digits is 576, while the sum is 21.

The square root of 664040010 is about 25768.9737863191. The cubic root of 664040010 is about 872.4316566747.

Adding to 664040010 its reverse (10040466), we get a palindrome (674080476).

The spelling of 664040010 in words is "six hundred sixty-four million, forty thousand, ten".