65671610005220 has 48 divisors (see below), whose sum is σ = 148202200540800. Its totient is φ = 24354423227904.

The previous prime is 65671610005187. The next prime is 65671610005223. The reversal of 65671610005220 is 2250001617656.

It is not an unprimeable number, because it can be changed into a prime (65671610005223) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1441408520 + ... + 1441454079.

It is an arithmetic number, because the mean of its divisors is an integer number (3087545844600).

Almost surely, 2^{65671610005220} is an apocalyptic number.

It is an amenable number.

65671610005220 is an abundant number, since it is smaller than the sum of its proper divisors (82530590535580).

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

65671610005220 is a wasteful number, since it uses less digits than its factorization.

65671610005220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2882862692 (or 2882862690 counting only the distinct ones).

The product of its (nonzero) digits is 151200, while the sum is 41.

The spelling of 65671610005220 in words is "sixty-five trillion, six hundred seventy-one billion, six hundred ten million, five thousand, two hundred twenty".