66366356 has 24 divisors (see below), whose sum is σ = 132940416. Its totient is φ = 28398240.

The previous prime is 66366347. The next prime is 66366359. The reversal of 66366356 is 65366366.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (66366359) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 21545 + ... + 24431.

It is an arithmetic number, because the mean of its divisors is an integer number (5539184).

Almost surely, 2^66366356 is an apocalyptic number.

It is an amenable number.

66366356 is an abundant number, since it is smaller than the sum of its proper divisors (66574060).

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

66366356 is a wasteful number, since it uses less digits than its factorization.

66366356 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3719 (or 3717 counting only the distinct ones).

The product of its digits is 349920, while the sum is 41.

The square root of 66366356 is about 8146.5548546610. The cubic root of 66366356 is about 404.8703664772.

The spelling of 66366356 in words is "sixty-six million, three hundred sixty-six thousand, three hundred fifty-six".