66502344 has 32 divisors (see below), whose sum is σ = 166540320. Its totient is φ = 22129536.

The previous prime is 66502301. The next prime is 66502349. The reversal of 66502344 is 44320566.

It is not an unprimeable number, because it can be changed into a prime (66502349) 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, 14364 + ... + 18420.

It is an arithmetic number, because the mean of its divisors is an integer number (5204385).

Almost surely, 2^66502344 is an apocalyptic number.

It is an amenable number.

66502344 is an abundant number, since it is smaller than the sum of its proper divisors (100037976).

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

66502344 is a wasteful number, since it uses less digits than its factorization.

66502344 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4749 (or 4745 counting only the distinct ones).

The product of its (nonzero) digits is 17280, while the sum is 30.

The square root of 66502344 is about 8154.8969337448. The cubic root of 66502344 is about 405.1467110603.

The spelling of 66502344 in words is "sixty-six million, five hundred two thousand, three hundred forty-four".