66723382 has 16 divisors (see below), whose sum is σ = 109397952. Its totient is φ = 30269320.

The previous prime is 66723379. The next prime is 66723407. The reversal of 66723382 is 28332766.

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, 9693 + ... + 15079.

It is an arithmetic number, because the mean of its divisors is an integer number (6837372).

Almost surely, 2^66723382 is an apocalyptic number.

66723382 is a deficient number, since it is larger than the sum of its proper divisors (42674570).

66723382 is a wasteful number, since it uses less digits than its factorization.

66723382 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5963.

The product of its digits is 72576, while the sum is 37.

The square root of 66723382 is about 8168.4381616072. The cubic root of 66723382 is about 405.5950851512.

The spelling of 66723382 in words is "sixty-six million, seven hundred twenty-three thousand, three hundred eighty-two".