66931334 has 8 divisors (see below), whose sum is σ = 104762160. Its totient is φ = 32010616.

The previous prime is 66931331. The next prime is 66931343. The reversal of 66931334 is 43313966.

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

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 66931294 and 66931303.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (66931331) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 727469 + ... + 727560.

It is an arithmetic number, because the mean of its divisors is an integer number (13095270).

Almost surely, 2^66931334 is an apocalyptic number.

66931334 is a deficient number, since it is larger than the sum of its proper divisors (37830826).

66931334 is a wasteful number, since it uses less digits than its factorization.

66931334 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1455054.

The product of its digits is 34992, while the sum is 35.

The square root of 66931334 is about 8181.1572531030. The cubic root of 66931334 is about 406.0160112430.

The spelling of 66931334 in words is "sixty-six million, nine hundred thirty-one thousand, three hundred thirty-four".