66678419132 has 24 divisors (see below), whose sum is σ = 129059480256. Its totient is φ = 29942906688.

The previous prime is 66678419089. The next prime is 66678419153. The reversal of 66678419132 is 23191487666.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 17326148 + ... + 17329995.

It is an arithmetic number, because the mean of its divisors is an integer number (5377478344).

Almost surely, 2^66678419132 is an apocalyptic number.

It is an amenable number.

66678419132 is a deficient number, since it is larger than the sum of its proper divisors (62381061124).

66678419132 is a wasteful number, since it uses less digits than its factorization.

66678419132 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 34656197 (or 34656195 counting only the distinct ones).

The product of its digits is 2612736, while the sum is 53.

The spelling of 66678419132 in words is "sixty-six billion, six hundred seventy-eight million, four hundred nineteen thousand, one hundred thirty-two".