65809703232 has 1008 divisors, whose sum is σ = 250407830400. Its totient is φ = 17118646272.

The previous prime is 65809703213. The next prime is 65809703251. The reversal of 65809703232 is 23230790856.

65809703232 is a `hidden beast` number, since 6 + 580 + 9 + 7 + 0 + 32 + 32 = 666.

It is an interprime number because it is at equal distance from previous prime (65809703213) and next prime (65809703251).

It is a tau number, because it is divible by the number of its divisors (1008).

It is a super-2 number, since 2×65809703232² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 143 ways as a sum of consecutive naturals, for example, 901502748 + ... + 901502820.

Almost surely, 2^65809703232 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 65809703232, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (125203915200).

65809703232 is an abundant number, since it is smaller than the sum of its proper divisors (184598127168).

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

65809703232 is an equidigital number, since it uses as much as digits as its factorization.

65809703232 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 147 (or 98 counting only the distinct ones).

The product of its (nonzero) digits is 544320, while the sum is 45.

The spelling of 65809703232 in words is "sixty-five billion, eight hundred nine million, seven hundred three thousand, two hundred thirty-two".