623201660 has 24 divisors (see below), whose sum is σ = 1330907760. Its totient is φ = 245055104.

The previous prime is 623201641. The next prime is 623201687. The reversal of 623201660 is 66102326.

623201660 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 262889 + ... + 265248.

It is an arithmetic number, because the mean of its divisors is an integer number (55454490).

Almost surely, 2^623201660 is an apocalyptic number.

It is an amenable number.

623201660 is an abundant number, since it is smaller than the sum of its proper divisors (707706100).

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

623201660 is a wasteful number, since it uses less digits than its factorization.

623201660 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 528205 (or 528203 counting only the distinct ones).

The product of its (nonzero) digits is 2592, while the sum is 26.

The square root of 623201660 is about 24964.0072904973. The cubic root of 623201660 is about 854.1671540694.

Adding to 623201660 its reverse (66102326), we get a palindrome (689303986).

The spelling of 623201660 in words is "six hundred twenty-three million, two hundred one thousand, six hundred sixty".