66825368 has 64 divisors (see below), whose sum is σ = 138101760. Its totient is φ = 30191616.

The previous prime is 66825329. The next prime is 66825379. The reversal of 66825368 is 86352866.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 526121 + ... + 526247.

It is an arithmetic number, because the mean of its divisors is an integer number (2157840).

Almost surely, 2^66825368 is an apocalyptic number.

66825368 is a gapful number since it is divisible by the number (68) formed by its first and last digit.

It is an amenable number.

66825368 is an abundant number, since it is smaller than the sum of its proper divisors (71276392).

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

66825368 is a wasteful number, since it uses less digits than its factorization.

66825368 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 276 (or 272 counting only the distinct ones).

The product of its digits is 414720, while the sum is 44.

The square root of 66825368 is about 8174.6784646248. The cubic root of 66825368 is about 405.8016292524.

The spelling of 66825368 in words is "sixty-six million, eight hundred twenty-five thousand, three hundred sixty-eight".