57160566 has 80 divisors (see below), whose sum is σ = 138520800. Its totient is φ = 17596656.

The previous prime is 57160549. The next prime is 57160567. The reversal of 57160566 is 66506175.

57160566 = T₃₃ + T₃₄ + ... + T₆₉₉.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 57160566.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (57160567) by changing a digit.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 1971040 + ... + 1971068.

It is an arithmetic number, because the mean of its divisors is an integer number (1731510).

Almost surely, 2^57160566 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 57160566, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (69260400).

57160566 is an abundant number, since it is smaller than the sum of its proper divisors (81360234).

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

57160566 is an equidigital number, since it uses as much as digits as its factorization.

57160566 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 112 (or 57 counting only the distinct ones).

The product of its (nonzero) digits is 37800, while the sum is 36.

The square root of 57160566 is about 7560.4607002484. The cubic root of 57160566 is about 385.2111418444.

The spelling of 57160566 in words is "fifty-seven million, one hundred sixty thousand, five hundred sixty-six".