66669035 has 16 divisors (see below), whose sum is σ = 81741792. Its totient is φ = 52185600.

The previous prime is 66669023. The next prime is 66669059. The reversal of 66669035 is 53096666.

66669035 is nontrivially palindromic in base 15.

It is not a de Polignac number, because 66669035 - 2²⁴ = 49891819 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 66668983 and 66669001.

It is an unprimeable number.

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, 73052 + ... + 73958.

It is an arithmetic number, because the mean of its divisors is an integer number (5108862).

Almost surely, 2^66669035 is an apocalyptic number.

66669035 is a deficient number, since it is larger than the sum of its proper divisors (15072757).

66669035 is a wasteful number, since it uses less digits than its factorization.

66669035 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1214.

The product of its (nonzero) digits is 174960, while the sum is 41.

The square root of 66669035 is about 8165.1108381944. The cubic root of 66669035 is about 405.4849345419.

The spelling of 66669035 in words is "sixty-six million, six hundred sixty-nine thousand, thirty-five".