57666768 has 40 divisors (see below), whose sum is σ = 151079616. Its totient is φ = 18950400.

The previous prime is 57666733. The next prime is 57666769. The reversal of 57666768 is 86766675.

It is a happy number.

It is a super-2 number, since 2×57666768² = 6650912263131648, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 57666768.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (57666769) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5053 + ... + 11868.

Almost surely, 2^57666768 is an apocalyptic number.

It is an amenable number.

57666768 is an abundant number, since it is smaller than the sum of its proper divisors (93412848).

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

57666768 is a wasteful number, since it uses less digits than its factorization.

57666768 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17003 (or 16997 counting only the distinct ones).

The product of its digits is 2540160, while the sum is 51.

The square root of 57666768 is about 7593.8638386529. The cubic root of 57666768 is about 386.3449179699.

The spelling of 57666768 in words is "fifty-seven million, six hundred sixty-six thousand, seven hundred sixty-eight".