557402830668 has 120 divisors (see below), whose sum is σ = 1543200120000. Its totient is φ = 174834796032.

The previous prime is 557402830637. The next prime is 557402830697. The reversal of 557402830668 is 866038204755.

557402830668 is a `hidden beast` number, since 5 + 574 + 0 + 2 + 8 + 3 + 0 + 6 + 68 = 666.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 39810333 + ... + 39824331.

It is an arithmetic number, because the mean of its divisors is an integer number (12860001000).

Almost surely, 2^557402830668 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 557402830668, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (771600060000).

557402830668 is an abundant number, since it is smaller than the sum of its proper divisors (985797289332).

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

557402830668 is a wasteful number, since it uses less digits than its factorization.

557402830668 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21261 (or 21250 counting only the distinct ones).

The product of its (nonzero) digits is 9676800, while the sum is 54.

The spelling of 557402830668 in words is "five hundred fifty-seven billion, four hundred two million, eight hundred thirty thousand, six hundred sixty-eight".