557644741221436 has 24 divisors (see below), whose sum is σ = 1064595338158464. Its totient is φ = 253474684232880.

The previous prime is 557644741221433. The next prime is 557644741221461. The reversal of 557644741221436 is 634122147446755.

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, 62204241 + ... + 70602103.

It is an arithmetic number, because the mean of its divisors is an integer number (44358139089936).

Almost surely, 2^{557644741221436} is an apocalyptic number.

It is an amenable number.

557644741221436 is a deficient number, since it is larger than the sum of its proper divisors (506950596937028).

557644741221436 is a wasteful number, since it uses less digits than its factorization.

557644741221436 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9907041 (or 9907039 counting only the distinct ones).

The product of its digits is 135475200, while the sum is 61.

The spelling of 557644741221436 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-six".