66228762 has 8 divisors (see below), whose sum is σ = 132457536. Its totient is φ = 22076252.

The previous prime is 66228733. The next prime is 66228769. The reversal of 66228762 is 26782266.

66228762 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

66228762 is an admirable number.

It is a self number, because there is not a number n which added to its sum of digits gives 66228762.

It is not an unprimeable number, because it can be changed into a prime (66228769) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5519058 + ... + 5519069.

It is an arithmetic number, because the mean of its divisors is an integer number (16557192).

Almost surely, 2^66228762 is an apocalyptic number.

66228762 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.

66228762 is a wasteful number, since it uses less digits than its factorization.

66228762 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11038132.

The product of its digits is 96768, while the sum is 39.

The square root of 66228762 is about 8138.1055535057. The cubic root of 66228762 is about 404.5903738241.

The spelling of 66228762 in words is "sixty-six million, two hundred twenty-eight thousand, seven hundred sixty-two".