671323433245600 has 72 divisors (see below), whose sum is σ = 1643262081019020. Its totient is φ = 267809455288320.

The previous prime is 671323433245589. The next prime is 671323433245607. The reversal of 671323433245600 is 6542334323176.

It can be written as a sum of positive squares in 6 ways, for example, as 235364567827216 + 435958865418384 = 15341596^2 + 20879628^2 .

It is not an unprimeable number, because it can be changed into a prime (671323433245607) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1124573305 + ... + 1125170104.

Almost surely, 2^{671323433245600} is an apocalyptic number.

It is an amenable number.

671323433245600 is an abundant number, since it is smaller than the sum of its proper divisors (971938647773420).

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

671323433245600 is a wasteful number, since it uses less digits than its factorization.

671323433245600 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2249743802 (or 2249743789 counting only the distinct ones).

The product of its (nonzero) digits is 6531840, while the sum is 49.

Adding to 671323433245600 its reverse (6542334323176), we get a palindrome (677865767568776).

The spelling of 671323433245600 in words is "six hundred seventy-one trillion, three hundred twenty-three billion, four hundred thirty-three million, two hundred forty-five thousand, six hundred".