65620118808 has 96 divisors (see below), whose sum is σ = 180397517040. Its totient is φ = 21546362880.

The previous prime is 65620118807. The next prime is 65620118819. The reversal of 65620118808 is 80881102656.

65620118808 is a `hidden beast` number, since 6 + 5 + 620 + 1 + 18 + 8 + 0 + 8 = 666.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (65620118807) 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 23 ways as a sum of consecutive naturals, for example, 1301428 + ... + 1350908.

Almost surely, 2^65620118808 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 65620118808, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (90198758520).

65620118808 is an abundant number, since it is smaller than the sum of its proper divisors (114777398232).

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

65620118808 is a wasteful number, since it uses less digits than its factorization.

65620118808 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 49769 (or 49762 counting only the distinct ones).

The product of its (nonzero) digits is 184320, while the sum is 45.

The spelling of 65620118808 in words is "sixty-five billion, six hundred twenty million, one hundred eighteen thousand, eight hundred eight".