66078486 has 12 divisors (see below), whose sum is σ = 143170092. Its totient is φ = 22026156.

The previous prime is 66078479. The next prime is 66078491. The reversal of 66078486 is 68487066.

It is a happy number.

66078486 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

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 5 ways as a sum of consecutive naturals, for example, 1835496 + ... + 1835531.

It is an arithmetic number, because the mean of its divisors is an integer number (11930841).

Almost surely, 2^66078486 is an apocalyptic number.

66078486 is an abundant number, since it is smaller than the sum of its proper divisors (77091606).

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

66078486 is a wasteful number, since it uses less digits than its factorization.

66078486 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3671035 (or 3671032 counting only the distinct ones).

The product of its (nonzero) digits is 387072, while the sum is 45.

The square root of 66078486 is about 8128.8674487901. The cubic root of 66078486 is about 404.2841309101.

It can be divided in two parts, 66078 and 486, that added together give a square (66564 = 258²).

The spelling of 66078486 in words is "sixty-six million, seventy-eight thousand, four hundred eighty-six".