57145840158 has 64 divisors (see below), whose sum is σ = 132308121600. Its totient is φ = 16283240160.

The previous prime is 57145840117. The next prime is 57145840159. The reversal of 57145840158 is 85104854175.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (57145840159) 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, 229468 + ... + 408591.

It is an arithmetic number, because the mean of its divisors is an integer number (2067314400).

Almost surely, 2^57145840158 is an apocalyptic number.

57145840158 is an abundant number, since it is smaller than the sum of its proper divisors (75162281442).

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

57145840158 is a wasteful number, since it uses less digits than its factorization.

57145840158 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 638157.

The product of its (nonzero) digits is 896000, while the sum is 48.

The spelling of 57145840158 in words is "fifty-seven billion, one hundred forty-five million, eight hundred forty thousand, one hundred fifty-eight".