66246460 has 48 divisors (see below), whose sum is σ = 160022016. Its totient is φ = 22565952.

The previous prime is 66246457. The next prime is 66246493. The reversal of 66246460 is 6464266.

It is a congruent number.

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 15 ways as a sum of consecutive naturals, for example, 21369 + ... + 24271.

It is an arithmetic number, because the mean of its divisors is an integer number (3333792).

Almost surely, 2^66246460 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 66246460, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (80011008).

66246460 is an abundant number, since it is smaller than the sum of its proper divisors (93775556).

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

66246460 is a wasteful number, since it uses less digits than its factorization.

66246460 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3082 (or 3080 counting only the distinct ones).

The product of its (nonzero) digits is 41472, while the sum is 34.

The square root of 66246460 is about 8139.1928346735. The cubic root of 66246460 is about 404.6264095408.

The spelling of 66246460 in words is "sixty-six million, two hundred forty-six thousand, four hundred sixty".