18057565630848 has 128 divisors (see below), whose sum is σ = 48007598745600. Its totient is φ = 6013897021440.

The previous prime is 18057565630829. The next prime is 18057565630849. The reversal of 18057565630848 is 84803656575081.

It is a tau number, because it is divible by the number of its divisors (128).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18057565630849) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3662046943 + ... + 3662051873.

It is an arithmetic number, because the mean of its divisors is an integer number (375059365200).

Almost surely, 2^{18057565630848} is an apocalyptic number.

It is an amenable number.

18057565630848 is an abundant number, since it is smaller than the sum of its proper divisors (29950033114752).

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

18057565630848 is a wasteful number, since it uses less digits than its factorization.

18057565630848 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11400 (or 11388 counting only the distinct ones).

The product of its (nonzero) digits is 193536000, while the sum is 66.

The spelling of 18057565630848 in words is "eighteen trillion, fifty-seven billion, five hundred sixty-five million, six hundred thirty thousand, eight hundred forty-eight".