65542697792 has 112 divisors (see below), whose sum is σ = 152914087872. Its totient is φ = 27479777280.

The previous prime is 65542697771. The next prime is 65542697827. The reversal of 65542697792 is 29779624556.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 22118903 + ... + 22121865.

It is an arithmetic number, because the mean of its divisors is an integer number (1365304356).

Almost surely, 2^65542697792 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 65542697792, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (76457043936).

65542697792 is an abundant number, since it is smaller than the sum of its proper divisors (87371390080).

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

65542697792 is a wasteful number, since it uses less digits than its factorization.

65542697792 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5416 (or 5406 counting only the distinct ones).

The product of its digits is 57153600, while the sum is 62.

The spelling of 65542697792 in words is "sixty-five billion, five hundred forty-two million, six hundred ninety-seven thousand, seven hundred ninety-two".