1331628260000 has 60 divisors (see below), whose sum is σ = 3276005313042. Its totient is φ = 532651296000.

The previous prime is 1331628259999. The next prime is 1331628260041. The reversal of 1331628260000 is 628261331.

It can be written as a sum of positive squares in 5 ways, for example, as 40123294864 + 1291504965136 = 200308^2 + 1136444^2 .

It is a Harshad number since it is a multiple of its sum of digits (32).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 33270707 + ... + 33310706.

Almost surely, 2^{1331628260000} is an apocalyptic number.

1331628260000 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1331628260000 is an abundant number, since it is smaller than the sum of its proper divisors (1944377053042).

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

1331628260000 is an frugal number, since it uses more digits than its factorization.

1331628260000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 66581443 (or 66581420 counting only the distinct ones).

The product of its (nonzero) digits is 10368, while the sum is 32.

The spelling of 1331628260000 in words is "one trillion, three hundred thirty-one billion, six hundred twenty-eight million, two hundred sixty thousand".