66357284 has 12 divisors (see below), whose sum is σ = 132714624. Its totient is φ = 28438824.

The previous prime is 66357259. The next prime is 66357287. The reversal of 66357284 is 48275366.

It is a happy number.

66357284 is an admirable number.

It is a hoax number, since the sum of its digits (41) coincides with the sum of the digits of its distinct prime factors.

It is not an unprimeable number, because it can be changed into a prime (66357287) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1184924 + ... + 1184979.

It is an arithmetic number, because the mean of its divisors is an integer number (11059552).

Almost surely, 2^66357284 is an apocalyptic number.

It is an amenable number.

66357284 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

66357284 is a wasteful number, since it uses less digits than its factorization.

66357284 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2369914 (or 2369912 counting only the distinct ones).

The product of its digits is 241920, while the sum is 41.

The square root of 66357284 is about 8145.9980358456. The cubic root of 66357284 is about 404.8519176147.

The spelling of 66357284 in words is "sixty-six million, three hundred fifty-seven thousand, two hundred eighty-four".