66003472078 has 8 divisors (see below), whose sum is σ = 99006976872. Its totient is φ = 33001146456.

The previous prime is 66003472027. The next prime is 66003472109. The reversal of 66003472078 is 87027430066.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 138225 + ... + 388732.

It is an arithmetic number, because the mean of its divisors is an integer number (12375872109).

Almost surely, 2^66003472078 is an apocalyptic number.

66003472078 is a deficient number, since it is larger than the sum of its proper divisors (33003504794).

66003472078 is a wasteful number, since it uses less digits than its factorization.

66003472078 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 589586.

The product of its (nonzero) digits is 338688, while the sum is 43.

The spelling of 66003472078 in words is "sixty-six billion, three million, four hundred seventy-two thousand, seventy-eight".