2148365638512 has 60 divisors (see below), whose sum is σ = 6174938338920. Its totient is φ = 696767232384.

The previous prime is 2148365638511. The next prime is 2148365638543. The reversal of 2148365638512 is 2158365638412.

2148365638512 is a `hidden beast` number, since 2 + 1 + 4 + 8 + 3 + 65 + 63 + 8 + 512 = 666.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2148365638511) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 201605562 + ... + 201616217.

It is an arithmetic number, because the mean of its divisors is an integer number (102915638982).

Almost surely, 2^{2148365638512} is an apocalyptic number.

It is an amenable number.

2148365638512 is an abundant number, since it is smaller than the sum of its proper divisors (4026572700408).

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

2148365638512 is a wasteful number, since it uses less digits than its factorization.

2148365638512 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 403221830 (or 403221821 counting only the distinct ones).

The product of its digits is 8294400, while the sum is 54.

The spelling of 2148365638512 in words is "two trillion, one hundred forty-eight billion, three hundred sixty-five million, six hundred thirty-eight thousand, five hundred twelve".