664120316132 has 24 divisors (see below), whose sum is σ = 1430412989376. Its totient is φ = 262728916128.

The previous prime is 664120316089. The next prime is 664120316161. The reversal of 664120316132 is 231613021466.

It is a junction number, because it is equal to n+sod(n) for n = 664120316092 and 664120316101.

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, 912252818 + ... + 912253545.

It is an arithmetic number, because the mean of its divisors is an integer number (59600541224).

Almost surely, 2^664120316132 is an apocalyptic number.

It is an amenable number.

664120316132 is an abundant number, since it is smaller than the sum of its proper divisors (766292673244).

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

664120316132 is a wasteful number, since it uses less digits than its factorization.

664120316132 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1824506387 (or 1824506385 counting only the distinct ones).

The product of its (nonzero) digits is 31104, while the sum is 35.

Adding to 664120316132 its reverse (231613021466), we get a palindrome (895733337598).

The spelling of 664120316132 in words is "six hundred sixty-four billion, one hundred twenty million, three hundred sixteen thousand, one hundred thirty-two".