65385214140 has 96 divisors (see below), whose sum is σ = 193111672320. Its totient is φ = 16484311296.

The previous prime is 65385214123. The next prime is 65385214189. The reversal of 65385214140 is 4141258356.

65385214140 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 496294 + ... + 614066.

It is an arithmetic number, because the mean of its divisors is an integer number (2011579920).

Almost surely, 2^65385214140 is an apocalyptic number.

65385214140 is a gapful number since it is divisible by the number (60) 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 65385214140, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (96555836160).

65385214140 is an abundant number, since it is smaller than the sum of its proper divisors (127726458180).

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

65385214140 is a wasteful number, since it uses less digits than its factorization.

65385214140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 118291 (or 118289 counting only the distinct ones).

The product of its (nonzero) digits is 115200, while the sum is 39.

The spelling of 65385214140 in words is "sixty-five billion, three hundred eighty-five million, two hundred fourteen thousand, one hundred forty".