66792644 has 12 divisors (see below), whose sum is σ = 121969344. Its totient is φ = 31944264.

The previous prime is 66792641. The next prime is 66792679. The reversal of 66792644 is 44629766.

It is a super-2 number, since 2×66792644² = 8922514585021472, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 66792595 and 66792604.

It is not an unprimeable number, because it can be changed into a prime (66792641) 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, 362912 + ... + 363095.

It is an arithmetic number, because the mean of its divisors is an integer number (10164112).

Almost surely, 2^66792644 is an apocalyptic number.

It is an amenable number.

66792644 is a deficient number, since it is larger than the sum of its proper divisors (55176700).

66792644 is a wasteful number, since it uses less digits than its factorization.

66792644 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 726034 (or 726032 counting only the distinct ones).

The product of its digits is 435456, while the sum is 44.

The square root of 66792644 is about 8172.6766729144. The cubic root of 66792644 is about 405.7353788591.

The spelling of 66792644 in words is "sixty-six million, seven hundred ninety-two thousand, six hundred forty-four".