57660849520 has 40 divisors (see below), whose sum is σ = 134105010480. Its totient is φ = 23056849920.

The previous prime is 57660849479. The next prime is 57660849551. The reversal of 57660849520 is 2594806675.

It is a tau number, because it is divible by the number of its divisors (40).

It is a congruent number.

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, 134211 + ... + 365149.

It is an arithmetic number, because the mean of its divisors is an integer number (3352625262).

Almost surely, 2^57660849520 is an apocalyptic number.

It is an amenable number.

57660849520 is an abundant number, since it is smaller than the sum of its proper divisors (76444160960).

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

57660849520 is a wasteful number, since it uses less digits than its factorization.

57660849520 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 234073 (or 234067 counting only the distinct ones).

The product of its (nonzero) digits is 3628800, while the sum is 52.

The spelling of 57660849520 in words is "fifty-seven billion, six hundred sixty million, eight hundred forty-nine thousand, five hundred twenty".