66608028884 has 24 divisors (see below), whose sum is σ = 117358295040. Its totient is φ = 33077483744.

The previous prime is 66608028869. The next prime is 66608028919. The reversal of 66608028884 is 48882080666.

66608028884 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-3 number, since 3×66608028884³ (a number of 33 digits) contains 333 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 631277 + ... + 729195.

It is an arithmetic number, because the mean of its divisors is an integer number (4889928960).

Almost surely, 2^66608028884 is an apocalyptic number.

It is an amenable number.

66608028884 is a deficient number, since it is larger than the sum of its proper divisors (50750266156).

66608028884 is a wasteful number, since it uses less digits than its factorization.

66608028884 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 99079 (or 99077 counting only the distinct ones).

The product of its (nonzero) digits is 7077888, while the sum is 56.

The spelling of 66608028884 in words is "sixty-six billion, six hundred eight million, twenty-eight thousand, eight hundred eighty-four".