66064696 has 16 divisors (see below), whose sum is σ = 123972840. Its totient is φ = 33005280.

The previous prime is 66064681. The next prime is 66064709. The reversal of 66064696 is 69646066.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10191 + ... + 15361.

Almost surely, 2^66064696 is an apocalyptic number.

It is an amenable number.

66064696 is a deficient number, since it is larger than the sum of its proper divisors (57908144).

66064696 is a wasteful number, since it uses less digits than its factorization.

66064696 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6774 (or 6770 counting only the distinct ones).

The product of its (nonzero) digits is 279936, while the sum is 43.

The square root of 66064696 is about 8128.0191928907. The cubic root of 66064696 is about 404.2560054370.

It can be divided in two parts, 660 and 64696, that added together give a palindrome (65356).

The spelling of 66064696 in words is "sixty-six million, sixty-four thousand, six hundred ninety-six".