57581516040 has 32 divisors (see below), whose sum is σ = 172744548480. Its totient is φ = 15355070912.

The previous prime is 57581516011. The next prime is 57581516077. The reversal of 57581516040 is 4061518575.

It is a junction number, because it is equal to n+sod(n) for n = 57581515983 and 57581516001.

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, 239922864 + ... + 239923103.

It is an arithmetic number, because the mean of its divisors is an integer number (5398267140).

Almost surely, 2^57581516040 is an apocalyptic number.

It is an amenable number.

57581516040 is an abundant number, since it is smaller than the sum of its proper divisors (115163032440).

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

57581516040 is a wasteful number, since it uses less digits than its factorization.

57581516040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 479845981 (or 479845977 counting only the distinct ones).

The product of its (nonzero) digits is 168000, while the sum is 42.

The spelling of 57581516040 in words is "fifty-seven billion, five hundred eighty-one million, five hundred sixteen thousand, forty".