2044404136655 has 8 divisors (see below), whose sum is σ = 2460234781872. Its totient is φ = 1630890097408.

The previous prime is 2044404136601. The next prime is 2044404136657. The reversal of 2044404136655 is 5566314044402.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 2044404136655 - 2²⁶ = 2044337027791 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2044404136657) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 579149549 + ... + 579153078.

It is an arithmetic number, because the mean of its divisors is an integer number (307529347734).

Almost surely, 2^{2044404136655} is an apocalyptic number.

2044404136655 is a deficient number, since it is larger than the sum of its proper divisors (415830645217).

2044404136655 is a wasteful number, since it uses less digits than its factorization.

2044404136655 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1158302985.

The product of its (nonzero) digits is 1382400, while the sum is 44.

The spelling of 2044404136655 in words is "two trillion, forty-four billion, four hundred four million, one hundred thirty-six thousand, six hundred fifty-five".