557240166 has 48 divisors (see below), whose sum is σ = 1383501600. Its totient is φ = 158788224.

The previous prime is 557240137. The next prime is 557240207. The reversal of 557240166 is 661042755.

It is a happy number.

557240166 is a `hidden beast` number, since 557 + 2 + 40 + 1 + 66 = 666.

It is a self number, because there is not a number n which added to its sum of digits gives 557240166.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 43330 + ... + 54698.

It is an arithmetic number, because the mean of its divisors is an integer number (28822950).

Almost surely, 2^557240166 is an apocalyptic number.

557240166 is an abundant number, since it is smaller than the sum of its proper divisors (826261434).

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

557240166 is a wasteful number, since it uses less digits than its factorization.

557240166 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11773 (or 11770 counting only the distinct ones).

The product of its (nonzero) digits is 50400, while the sum is 36.

The square root of 557240166 is about 23605.9349740696. The cubic root of 557240166 is about 822.9007743120.

The spelling of 557240166 in words is "five hundred fifty-seven million, two hundred forty thousand, one hundred sixty-six".