66014500 has 48 divisors (see below), whose sum is σ = 148861440. Its totient is φ = 25548000.

The previous prime is 66014491. The next prime is 66014513. The reversal of 66014500 is 541066.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 13371 + ... + 17629.

It is an arithmetic number, because the mean of its divisors is an integer number (3101280).

Almost surely, 2^66014500 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 66014500, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (74430720).

66014500 is an abundant number, since it is smaller than the sum of its proper divisors (82846940).

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

66014500 is a wasteful number, since it uses less digits than its factorization.

66014500 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4309 (or 4297 counting only the distinct ones).

The product of its (nonzero) digits is 720, while the sum is 22.

The square root of 66014500 is about 8124.9307689358. The cubic root of 66014500 is about 404.1535948347.

Adding to 66014500 its reverse (541066), we get a palindrome (66555566).

The spelling of 66014500 in words is "sixty-six million, fourteen thousand, five hundred".