66240846 has 48 divisors (see below), whose sum is σ = 167388000. Its totient is φ = 18924192.

The previous prime is 66240833. The next prime is 66240877. The reversal of 66240846 is 64804266.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 66240846.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 810 + ... + 11538.

It is an arithmetic number, because the mean of its divisors is an integer number (3487250).

Almost surely, 2^66240846 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 66240846, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (83694000).

66240846 is an abundant number, since it is smaller than the sum of its proper divisors (101147154).

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

66240846 is a wasteful number, since it uses less digits than its factorization.

66240846 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10758 (or 10741 counting only the distinct ones).

The product of its (nonzero) digits is 55296, while the sum is 36.

The square root of 66240846 is about 8138.8479528739. The cubic root of 66240846 is about 404.6149793108.

The spelling of 66240846 in words is "sixty-six million, two hundred forty thousand, eight hundred forty-six".