66834361 has 16 divisors (see below), whose sum is σ = 77571648. Its totient is φ = 56908800.

The previous prime is 66834323. The next prime is 66834367. The reversal of 66834361 is 16343866.

It is a cyclic number.

It is not a de Polignac number, because 66834361 - 2²³ = 58445753 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 66834361.

It is not an unprimeable number, because it can be changed into a prime (66834367) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 44326 + ... + 45808.

It is an arithmetic number, because the mean of its divisors is an integer number (4848228).

Almost surely, 2^66834361 is an apocalyptic number.

It is an amenable number.

66834361 is a deficient number, since it is larger than the sum of its proper divisors (10737287).

66834361 is a wasteful number, since it uses less digits than its factorization.

66834361 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1752.

The product of its digits is 62208, while the sum is 37.

The square root of 66834361 is about 8175.2284983357. The cubic root of 66834361 is about 405.8198319723.

The spelling of 66834361 in words is "sixty-six million, eight hundred thirty-four thousand, three hundred sixty-one".