66002770 has 32 divisors (see below), whose sum is σ = 126244800. Its totient is φ = 24774336.

The previous prime is 66002767. The next prime is 66002771. The reversal of 66002770 is 7720066.

It is not an unprimeable number, because it can be changed into a prime (66002771) 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 15 ways as a sum of consecutive naturals, for example, 19117 + ... + 22303.

It is an arithmetic number, because the mean of its divisors is an integer number (3945150).

Almost surely, 2^66002770 is an apocalyptic number.

66002770 is a deficient number, since it is larger than the sum of its proper divisors (60242030).

66002770 is a wasteful number, since it uses less digits than its factorization.

66002770 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3322.

The product of its (nonzero) digits is 3528, while the sum is 28.

The square root of 66002770 is about 8124.2088845622. The cubic root of 66002770 is about 404.1296556371.

The spelling of 66002770 in words is "sixty-six million, two thousand, seven hundred seventy".