66066370 has 8 divisors (see below), whose sum is σ = 118919484. Its totient is φ = 26426544.

The previous prime is 66066359. The next prime is 66066383. The reversal of 66066370 is 7366066.

66066370 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 52954729 + 13111641 = 7277^2 + 3621^2 .

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

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 3 ways as a sum of consecutive naturals, for example, 3303309 + ... + 3303328.

Almost surely, 2^66066370 is an apocalyptic number.

66066370 is a deficient number, since it is larger than the sum of its proper divisors (52853114).

66066370 is a wasteful number, since it uses less digits than its factorization.

66066370 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6606644.

The product of its (nonzero) digits is 27216, while the sum is 34.

The square root of 66066370 is about 8128.1221693574. The cubic root of 66066370 is about 404.2594198619.

The spelling of 66066370 in words is "sixty-six million, sixty-six thousand, three hundred seventy".