66553302 has 16 divisors (see below), whose sum is σ = 133543872. Its totient is φ = 22111560.

The previous prime is 66553259. The next prime is 66553303. The reversal of 66553302 is 20335566.

It is a self number, because there is not a number n which added to its sum of digits gives 66553302.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (66553303) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 16224 + ... + 19907.

It is an arithmetic number, because the mean of its divisors is an integer number (8346492).

Almost surely, 2^66553302 is an apocalyptic number.

66553302 is an abundant number, since it is smaller than the sum of its proper divisors (66990570).

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

66553302 is a wasteful number, since it uses less digits than its factorization.

66553302 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 36443.

The product of its (nonzero) digits is 16200, while the sum is 30.

The square root of 66553302 is about 8158.0207158354. The cubic root of 66553302 is about 405.2501670382.

Adding to 66553302 its reverse (20335566), we get a palindrome (86888868).

The spelling of 66553302 in words is "sixty-six million, five hundred fifty-three thousand, three hundred two".