57655435866 has 64 divisors (see below), whose sum is σ = 132859872000. Its totient is φ = 16338802176.

The previous prime is 57655435823. The next prime is 57655435867. The reversal of 57655435866 is 66853455675.

It is not an unprimeable number, because it can be changed into a prime (57655435867) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 4580830 + ... + 4593398.

It is an arithmetic number, because the mean of its divisors is an integer number (2075935500).

Almost surely, 2^57655435866 is an apocalyptic number.

57655435866 is an abundant number, since it is smaller than the sum of its proper divisors (75204436134).

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

57655435866 is a wasteful number, since it uses less digits than its factorization.

57655435866 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13463.

The product of its digits is 90720000, while the sum is 60.

It can be divided in two parts, 57655 and 435866, that added together give a triangular number (493521 = T₉₉₃).

The spelling of 57655435866 in words is "fifty-seven billion, six hundred fifty-five million, four hundred thirty-five thousand, eight hundred sixty-six".