664231315000 has 120 divisors (see below), whose sum is σ = 1710638732880. Its totient is φ = 241538440000.

The previous prime is 664231314977. The next prime is 664231315019. The reversal of 664231315000 is 513132466.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 29 ways as a sum of consecutive naturals, for example, 56049 + ... + 1153951.

It is an arithmetic number, because the mean of its divisors is an integer number (14255322774).

Almost surely, 2^664231315000 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 664231315000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (855319366440).

664231315000 is an abundant number, since it is smaller than the sum of its proper divisors (1046407417880).

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

664231315000 is a wasteful number, since it uses less digits than its factorization.

664231315000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1097951 (or 1097921 counting only the distinct ones).

The product of its (nonzero) digits is 12960, while the sum is 31.

Adding to 664231315000 its reverse (513132466), we get a palindrome (664744447466).

The spelling of 664231315000 in words is "six hundred sixty-four billion, two hundred thirty-one million, three hundred fifteen thousand".