65272718420 has 48 divisors (see below), whose sum is σ = 168704876928. Its totient is φ = 20657738880.

The previous prime is 65272718377. The next prime is 65272718507. The reversal of 65272718420 is 2481727256.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 17930246 + ... + 17933885.

It is an arithmetic number, because the mean of its divisors is an integer number (3514684936).

Almost surely, 2^65272718420 is an apocalyptic number.

It is an amenable number.

65272718420 is an abundant number, since it is smaller than the sum of its proper divisors (103432158508).

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

65272718420 is a wasteful number, since it uses less digits than its factorization.

65272718420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 35864160 (or 35864158 counting only the distinct ones).

The product of its (nonzero) digits is 376320, while the sum is 44.

The spelling of 65272718420 in words is "sixty-five billion, two hundred seventy-two million, seven hundred eighteen thousand, four hundred twenty".