1644126130233 has 8 divisors (see below), whose sum is σ = 2435742415200. Its totient is φ = 1096084086804.

The previous prime is 1644126130177. The next prime is 1644126130253. The reversal of 1644126130233 is 3320316214461.

1644126130233 is a `hidden beast` number, since 1 + 6 + 4 + 4 + 1 + 2 + 613 + 0 + 2 + 33 = 666.

It is not a de Polignac number, because 1644126130233 - 2⁸ = 1644126129977 is a prime.

It is a super-3 number, since 3×1644126130233³ (a number of 38 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is not an unprimeable number, because it can be changed into a prime (1644126130253) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 30446780163 + ... + 30446780216.

It is an arithmetic number, because the mean of its divisors is an integer number (304467801900).

Almost surely, 2^{1644126130233} is an apocalyptic number.

It is an amenable number.

1644126130233 is a deficient number, since it is larger than the sum of its proper divisors (791616284967).

1644126130233 is an equidigital number, since it uses as much as digits as its factorization.

1644126130233 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 60893560388 (or 60893560382 counting only the distinct ones).

The product of its (nonzero) digits is 62208, while the sum is 36.

The spelling of 1644126130233 in words is "one trillion, six hundred forty-four billion, one hundred twenty-six million, one hundred thirty thousand, two hundred thirty-three".