66027899 has 8 divisors (see below), whose sum is σ = 75845088. Its totient is φ = 56306880.

The previous prime is 66027883. The next prime is 66027901. The reversal of 66027899 is 99872066.

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

It is not a de Polignac number, because 66027899 - 2⁴ = 66027883 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (66027839) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 22562 + ... + 25319.

It is an arithmetic number, because the mean of its divisors is an integer number (9480636).

Almost surely, 2^66027899 is an apocalyptic number.

66027899 is a deficient number, since it is larger than the sum of its proper divisors (9817189).

66027899 is a wasteful number, since it uses less digits than its factorization.

66027899 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 48085.

The product of its (nonzero) digits is 326592, while the sum is 47.

The square root of 66027899 is about 8125.7552879717. The cubic root of 66027899 is about 404.1809367454.

The spelling of 66027899 in words is "sixty-six million, twenty-seven thousand, eight hundred ninety-nine".