65776056 has 64 divisors (see below), whose sum is σ = 168739200. Its totient is φ = 21360000.

The previous prime is 65776049. The next prime is 65776063. The reversal of 65776056 is 65067756.

It is an interprime number because it is at equal distance from previous prime (65776049) and next prime (65776063).

It is a junction number, because it is equal to n+sod(n) for n = 65775999 and 65776017.

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, 261931 + ... + 262181.

It is an arithmetic number, because the mean of its divisors is an integer number (2636550).

Almost surely, 2^65776056 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 65776056, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (84369600).

65776056 is an abundant number, since it is smaller than the sum of its proper divisors (102963144).

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

65776056 is a wasteful number, since it uses less digits than its factorization.

65776056 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 500 (or 496 counting only the distinct ones).

The product of its (nonzero) digits is 264600, while the sum is 42.

The square root of 65776056 is about 8110.2438927569. The cubic root of 65776056 is about 403.6664076256. Note that the first 3 decimals are identical.

The spelling of 65776056 in words is "sixty-five million, seven hundred seventy-six thousand, fifty-six".