1312641005500 has 96 divisors (see below), whose sum is σ = 3159669659328. Its totient is φ = 472402944000.

The previous prime is 1312641005491. The next prime is 1312641005519. The reversal of 1312641005500 is 55001462131.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 696717 + ... + 1763716.

It is an arithmetic number, because the mean of its divisors is an integer number (32913225618).

Almost surely, 2^{1312641005500} is an apocalyptic number.

1312641005500 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1312641005500 is an abundant number, since it is smaller than the sum of its proper divisors (1847028653828).

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

1312641005500 is a wasteful number, since it uses less digits than its factorization.

1312641005500 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2460560 (or 2460548 counting only the distinct ones).

The product of its (nonzero) digits is 3600, while the sum is 28.

Adding to 1312641005500 its reverse (55001462131), we get a palindrome (1367642467631).

The spelling of 1312641005500 in words is "one trillion, three hundred twelve billion, six hundred forty-one million, five thousand, five hundred".