12540541168 has 20 divisors (see below), whose sum is σ = 24313093168. Its totient is φ = 6266194560.

The previous prime is 12540541157. The next prime is 12540541201. The reversal of 12540541168 is 86114504521.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 229293 + ... + 278668.

Almost surely, 2^12540541168 is an apocalyptic number.

It is an amenable number.

12540541168 is a deficient number, since it is larger than the sum of its proper divisors (11772552000).

12540541168 is a wasteful number, since it uses less digits than its factorization.

12540541168 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 509512 (or 509506 counting only the distinct ones).

The product of its (nonzero) digits is 38400, while the sum is 37.

The spelling of 12540541168 in words is "twelve billion, five hundred forty million, five hundred forty-one thousand, one hundred sixty-eight".