66514344 has 144 divisors (see below), whose sum is σ = 194302080. Its totient is φ = 18944640.

The previous prime is 66514337. The next prime is 66514361. The reversal of 66514344 is 44341566.

Its product of digits (34560) is a multiple of the sum of its prime divisors (72).

It is an unprimeable number.

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 35 ways as a sum of consecutive naturals, for example, 2145609 + ... + 2145639.

It is an arithmetic number, because the mean of its divisors is an integer number (1349320).

Almost surely, 2^66514344 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 66514344, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (97151040).

66514344 is an abundant number, since it is smaller than the sum of its proper divisors (127787736).

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

66514344 is a wasteful number, since it uses less digits than its factorization.

66514344 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 112 (or 72 counting only the distinct ones).

The product of its digits is 34560, while the sum is 33.

The square root of 66514344 is about 8155.6326547975. The cubic root of 66514344 is about 405.1710784628.

It can be divided in two parts, 665143 and 44, that multiplied together give a palindrome (29266292).

The spelling of 66514344 in words is "sixty-six million, five hundred fourteen thousand, three hundred forty-four".