57066066 has 16 divisors (see below), whose sum is σ = 126813600. Its totient is φ = 19022004.

The previous prime is 57066041. The next prime is 57066077. The reversal of 57066066 is 66066075.

It is a self number, because there is not a number n which added to its sum of digits gives 57066066.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 528336 + ... + 528443.

It is an arithmetic number, because the mean of its divisors is an integer number (7925850).

Almost surely, 2^57066066 is an apocalyptic number.

57066066 is an abundant number, since it is smaller than the sum of its proper divisors (69747534).

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

57066066 is a wasteful number, since it uses less digits than its factorization.

57066066 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1056790 (or 1056784 counting only the distinct ones).

The product of its (nonzero) digits is 45360, while the sum is 36.

The square root of 57066066 is about 7554.2084959313. The cubic root of 57066066 is about 384.9987428980.

Subtracting 57066066 from its reverse (66066075), we obtain a palindrome (9000009).

The spelling of 57066066 in words is "fifty-seven million, sixty-six thousand, sixty-six".