65805696 has 160 divisors (see below), whose sum is σ = 214010280. Its totient is φ = 19906560.

The previous prime is 65805689. The next prime is 65805703. The reversal of 65805696 is 69650856.

65805696 is a `hidden beast` number, since 6 + 5 + 80 + 569 + 6 = 666.

It is an interprime number because it is at equal distance from previous prime (65805689) and next prime (65805703).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 113760 + ... + 114336.

Almost surely, 2^65805696 is an apocalyptic number.

65805696 is a gapful number since it is divisible by the number (66) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 65805696, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (107005140).

65805696 is an abundant number, since it is smaller than the sum of its proper divisors (148204584).

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

65805696 is a wasteful number, since it uses less digits than its factorization.

65805696 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 614 (or 593 counting only the distinct ones).

The product of its (nonzero) digits is 388800, while the sum is 45.

The square root of 65805696 is about 8112.0710056064. The cubic root of 65805696 is about 403.7270318929.

Adding to 65805696 its product of nonzero digits (388800), we get a square (66194496 = 8136²).

The spelling of 65805696 in words is "sixty-five million, eight hundred five thousand, six hundred ninety-six".