65979606528 has 240 divisors, whose sum is σ = 208118710800. Its totient is φ = 19956695040.

The previous prime is 65979606521. The next prime is 65979606551. The reversal of 65979606528 is 82560697956.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (65979606521) 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, 41005788 + ... + 41007396.

It is an arithmetic number, because the mean of its divisors is an integer number (867161295).

Almost surely, 2^65979606528 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 65979606528, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (104059355400).

65979606528 is an abundant number, since it is smaller than the sum of its proper divisors (142139104272).

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

65979606528 is a wasteful number, since it uses less digits than its factorization.

65979606528 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2453 (or 2434 counting only the distinct ones).

The product of its (nonzero) digits is 48988800, while the sum is 63.

The spelling of 65979606528 in words is "sixty-five billion, nine hundred seventy-nine million, six hundred six thousand, five hundred twenty-eight".