65166467475560 has 32 divisors (see below), whose sum is σ = 159954056532000. Its totient is φ = 23696897263680.

The previous prime is 65166467475493. The next prime is 65166467475581. The reversal of 65166467475560 is 6557476466156.

It is a happy number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 74052803510 + ... + 74052804389.

It is an arithmetic number, because the mean of its divisors is an integer number (4998564266625).

Almost surely, 2^{65166467475560} is an apocalyptic number.

It is an amenable number.

65166467475560 is an abundant number, since it is smaller than the sum of its proper divisors (94787589056440).

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

65166467475560 is a wasteful number, since it uses less digits than its factorization.

65166467475560 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 148105607921 (or 148105607917 counting only the distinct ones).

The product of its (nonzero) digits is 762048000, while the sum is 68.

The spelling of 65166467475560 in words is "sixty-five trillion, one hundred sixty-six billion, four hundred sixty-seven million, four hundred seventy-five thousand, five hundred sixty".