140146128648 has 96 divisors (see below), whose sum is σ = 384272179200. Its totient is φ = 46139030784.

The previous prime is 140146128641. The next prime is 140146128673. The reversal of 140146128648 is 846821641041.

140146128648 is a `hidden beast` number, since 14 + 0 + 14 + 612 + 8 + 6 + 4 + 8 = 666.

140146128648 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is not an unprimeable number, because it can be changed into a prime (140146128641) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2004748 + ... + 2073476.

It is an arithmetic number, because the mean of its divisors is an integer number (4002835200).

Almost surely, 2^140146128648 is an apocalyptic number.

140146128648 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 140146128648, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (192136089600).

140146128648 is an abundant number, since it is smaller than the sum of its proper divisors (244126050552).

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

140146128648 is a wasteful number, since it uses less digits than its factorization.

140146128648 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 69091 (or 69084 counting only the distinct ones).

The product of its (nonzero) digits is 294912, while the sum is 45.

Adding to 140146128648 its reverse (846821641041), we get a palindrome (986967769689).

The spelling of 140146128648 in words is "one hundred forty billion, one hundred forty-six million, one hundred twenty-eight thousand, six hundred forty-eight".