66814362 has 64 divisors (see below), whose sum is σ = 154828800. Its totient is φ = 21334320.

The previous prime is 66814327. The next prime is 66814367. The reversal of 66814362 is 26341866.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (66814367) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 279439 + ... + 279677.

It is an arithmetic number, because the mean of its divisors is an integer number (2419200).

Almost surely, 2^66814362 is an apocalyptic number.

66814362 is a gapful number since it is divisible by the number (62) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 66814362, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (77414400).

66814362 is an abundant number, since it is smaller than the sum of its proper divisors (88014438).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

66814362 is a wasteful number, since it uses less digits than its factorization.

66814362 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 448 (or 442 counting only the distinct ones).

The product of its digits is 41472, while the sum is 36.

The square root of 66814362 is about 8174.0052605806. The cubic root of 66814362 is about 405.7793497993.

It can be divided in two parts, 66814 and 362, that added together give a palindrome (67176).

The spelling of 66814362 in words is "sixty-six million, eight hundred fourteen thousand, three hundred sixty-two".