65713745540 has 12 divisors (see below), whose sum is σ = 137998865676. Its totient is φ = 26285498208.

The previous prime is 65713745527. The next prime is 65713745543. The reversal of 65713745540 is 4554731756.

It can be written as a sum of positive squares in 2 ways, for example, as 8508586564 + 57205158976 = 92242^2 + 239176^2 .

It is not an unprimeable number, because it can be changed into a prime (65713745543) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 1642843619 + ... + 1642843658.

It is an arithmetic number, because the mean of its divisors is an integer number (11499905473).

Almost surely, 2^65713745540 is an apocalyptic number.

It is an amenable number.

65713745540 is an abundant number, since it is smaller than the sum of its proper divisors (72285120136).

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

65713745540 is a wasteful number, since it uses less digits than its factorization.

65713745540 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3285687286 (or 3285687284 counting only the distinct ones).

The product of its (nonzero) digits is 1764000, while the sum is 47.

The spelling of 65713745540 in words is "sixty-five billion, seven hundred thirteen million, seven hundred forty-five thousand, five hundred forty".