66514608 has 100 divisors (see below), whose sum is σ = 203904360. Its totient is φ = 20860416.

The previous prime is 66514601. The next prime is 66514627. The reversal of 66514608 is 80641566.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is not an unprimeable number, because it can be changed into a prime (66514601) 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 19 ways as a sum of consecutive naturals, for example, 20523 + ... + 23541.

Almost surely, 2^66514608 is an apocalyptic number.

66514608 is a gapful number since it is divisible by the number (68) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 66514608, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (101952180).

66514608 is an abundant number, since it is smaller than the sum of its proper divisors (137389752).

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

66514608 is a wasteful number, since it uses less digits than its factorization.

66514608 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3056 (or 3041 counting only the distinct ones).

The product of its (nonzero) digits is 34560, while the sum is 36.

The square root of 66514608 is about 8155.6488399146. The cubic root of 66514608 is about 405.1716145127.

The spelling of 66514608 in words is "sixty-six million, five hundred fourteen thousand, six hundred eight".