664202153020 has 36 divisors (see below), whose sum is σ = 1622550976200. Its totient is φ = 227726452128.

The previous prime is 664202153009. The next prime is 664202153029. The reversal of 664202153020 is 20351202466.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (664202153029) by changing a digit.

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 11 ways as a sum of consecutive naturals, for example, 338877670 + ... + 338879629.

It is an arithmetic number, because the mean of its divisors is an integer number (45070860450).

Almost surely, 2^664202153020 is an apocalyptic number.

It is an amenable number.

664202153020 is an abundant number, since it is smaller than the sum of its proper divisors (958348823180).

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

664202153020 is a wasteful number, since it uses less digits than its factorization.

664202153020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 677757322 (or 677757313 counting only the distinct ones).

The product of its (nonzero) digits is 17280, while the sum is 31.

Adding to 664202153020 its reverse (20351202466), we get a palindrome (684553355486).

The spelling of 664202153020 in words is "six hundred sixty-four billion, two hundred two million, one hundred fifty-three thousand, twenty".