66641104 has 20 divisors (see below), whose sum is σ = 129547264. Its totient is φ = 33209568.

The previous prime is 66641093. The next prime is 66641119. The reversal of 66641104 is 40114666.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1872 + ... + 11695.

Almost surely, 2^66641104 is an apocalyptic number.

It is an amenable number.

66641104 is a deficient number, since it is larger than the sum of its proper divisors (62906160).

66641104 is a wasteful number, since it uses less digits than its factorization.

66641104 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13882 (or 13876 counting only the distinct ones).

The product of its (nonzero) digits is 3456, while the sum is 28.

The square root of 66641104 is about 8163.4002719455. The cubic root of 66641104 is about 405.4283006454.

The spelling of 66641104 in words is "sixty-six million, six hundred forty-one thousand, one hundred four".