133204444101440 has 28 divisors (see below), whose sum is σ = 317193082517316. Its totient is φ = 53281777640448.

The previous prime is 133204444101389. The next prime is 133204444101481. The reversal of 133204444101440 is 44101444402331.

It can be written as a sum of positive squares in 2 ways, for example, as 19479794342464 + 113724649758976 = 4413592^2 + 10664176^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 133204444101440.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 208131943589 + ... + 208131944228.

Almost surely, 2^{133204444101440} is an apocalyptic number.

133204444101440 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

133204444101440 is an abundant number, since it is smaller than the sum of its proper divisors (183988638415876).

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

133204444101440 is an equidigital number, since it uses as much as digits as its factorization.

133204444101440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 416263887834 (or 416263887824 counting only the distinct ones).

The product of its (nonzero) digits is 73728, while the sum is 35.

Adding to 133204444101440 its reverse (44101444402331), we get a palindrome (177305888503771).

The spelling of 133204444101440 in words is "one hundred thirty-three trillion, two hundred four billion, four hundred forty-four million, one hundred one thousand, four hundred forty".