66000605216 has 96 divisors (see below), whose sum is σ = 168341765760. Its totient is φ = 24735891456.

The previous prime is 66000605207. The next prime is 66000605227. The reversal of 66000605216 is 61250600066.

It is a Harshad number since it is a multiple of its sum of digits (32).

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 15 ways as a sum of consecutive naturals, for example, 541121 + ... + 651776.

It is an arithmetic number, because the mean of its divisors is an integer number (1753560060).

Almost surely, 2^66000605216 is an apocalyptic number.

It is an amenable number.

66000605216 is an abundant number, since it is smaller than the sum of its proper divisors (102341160544).

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

66000605216 is a wasteful number, since it uses less digits than its factorization.

66000605216 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1192946 (or 1192938 counting only the distinct ones).

The product of its (nonzero) digits is 12960, while the sum is 32.

The spelling of 66000605216 in words is "sixty-six billion, six hundred five thousand, two hundred sixteen".