664200033131 has 4 divisors (see below), whose sum is σ = 665093977392. Its totient is φ = 663306088872.

The previous prime is 664200033121. The next prime is 664200033137. The reversal of 664200033131 is 131330002466.

664200033131 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 664200033131 - 2⁶ = 664200033067 is a prime.

It is a super-2 number, since 2×664200033131² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 664200033094 and 664200033103.

It is not an unprimeable number, because it can be changed into a prime (664200033137) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 446971016 + ... + 446972501.

It is an arithmetic number, because the mean of its divisors is an integer number (166273494348).

Almost surely, 2^664200033131 is an apocalyptic number.

664200033131 is a deficient number, since it is larger than the sum of its proper divisors (893944261).

664200033131 is an equidigital number, since it uses as much as digits as its factorization.

664200033131 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 893944260.

The product of its (nonzero) digits is 7776, while the sum is 29.

Adding to 664200033131 its reverse (131330002466), we get a palindrome (795530035597).

The spelling of 664200033131 in words is "six hundred sixty-four billion, two hundred million, thirty-three thousand, one hundred thirty-one".