557773668 has 96 divisors (see below), whose sum is σ = 1501516800. Its totient is φ = 178910208.

The previous prime is 557773649. The next prime is 557773681. The reversal of 557773668 is 866377755.

557773668 is a `hidden beast` number, since 5 + 577 + 7 + 3 + 6 + 68 = 666.

It is a super-2 number, since 2×557773668² = 622222929428348448, which contains 22 as substring.

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

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 386893 + ... + 388331.

It is an arithmetic number, because the mean of its divisors is an integer number (15640800).

Almost surely, 2^557773668 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 557773668, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (750758400).

557773668 is an abundant number, since it is smaller than the sum of its proper divisors (943743132).

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

557773668 is a wasteful number, since it uses less digits than its factorization.

557773668 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1586 (or 1578 counting only the distinct ones).

The product of its digits is 7408800, while the sum is 54.

The square root of 557773668 is about 23617.2324373539. The cubic root of 557773668 is about 823.1633057448.

The spelling of 557773668 in words is "five hundred fifty-seven million, seven hundred seventy-three thousand, six hundred sixty-eight".