66548472606 has 72 divisors (see below), whose sum is σ = 182977459704. Its totient is φ = 17285315040.

The previous prime is 66548472577. The next prime is 66548472611. The reversal of 66548472606 is 60627484566.

66548472606 is a `hidden beast` number, since 66 + 54 + 8 + 472 + 60 + 6 = 666.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 3419925 + ... + 3439328.

It is an arithmetic number, because the mean of its divisors is an integer number (2541353607).

Almost surely, 2^66548472606 is an apocalyptic number.

66548472606 is a gapful number since it is divisible by the number (66) formed by its first and last digit.

66548472606 is an abundant number, since it is smaller than the sum of its proper divisors (116428987098).

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

66548472606 is a wasteful number, since it uses less digits than its factorization.

66548472606 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6859286 (or 6859276 counting only the distinct ones).

The product of its (nonzero) digits is 11612160, while the sum is 54.

The spelling of 66548472606 in words is "sixty-six billion, five hundred forty-eight million, four hundred seventy-two thousand, six hundred six".