557644741221437 has 8 divisors (see below), whose sum is σ = 563095305601920. Its totient is φ = 552203223423040.

The previous prime is 557644741221433. The next prime is 557644741221461. The reversal of 557644741221437 is 734122147446755.

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 557644741221437 - 2² = 557644741221433 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 557644741221437.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (557644741221433) 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, 2261521637 + ... + 2261768202.

It is an arithmetic number, because the mean of its divisors is an integer number (70386913200240).

Almost surely, 2^{557644741221437} is an apocalyptic number.

It is an amenable number.

557644741221437 is a deficient number, since it is larger than the sum of its proper divisors (5450564380483).

557644741221437 is a wasteful number, since it uses less digits than its factorization.

557644741221437 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4523291043.

The product of its digits is 158054400, while the sum is 62.

The spelling of 557644741221437 in words is "five hundred fifty-seven trillion, six hundred forty-four billion, seven hundred forty-one million, two hundred twenty-one thousand, four hundred thirty-seven".