66827115 has 12 divisors (see below), whose sum is σ = 115833744. Its totient is φ = 35641104.

The previous prime is 66827077. The next prime is 66827129. The reversal of 66827115 is 51172866.

It is not a de Polignac number, because 66827115 - 2⁷ = 66826987 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 66827115.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 742479 + ... + 742568.

It is an arithmetic number, because the mean of its divisors is an integer number (9652812).

Almost surely, 2^66827115 is an apocalyptic number.

66827115 is a deficient number, since it is larger than the sum of its proper divisors (49006629).

66827115 is a wasteful number, since it uses less digits than its factorization.

66827115 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1485058 (or 1485055 counting only the distinct ones).

The product of its digits is 20160, while the sum is 36.

The square root of 66827115 is about 8174.7853182821. The cubic root of 66827115 is about 405.8051654807.

The spelling of 66827115 in words is "sixty-six million, eight hundred twenty-seven thousand, one hundred fifteen".